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2011-2012: HPA Weekly National Influenza Reports.

Ronan Kelly

Ronan Kelly

Retired 2020
2010-2011 thread here; http://www.flutrackers.com/forum/showthread.php?t=156296

Summary of UK surveillance of influenza and other seasonal respiratory illnesses
6 October 2011? Week 40

Influenza activity and GP consultation rates remain low in
the UK (Figure 1).
In week 39 (ending 2 October), the weekly
influenza/influenza-like illness (ILI) consultation rate was low
in England (4.5 per 100,000), Scotland (33.5 per 100,000 in
week 38), Wales (8.4 per 100,000) and Northern Ireland
(13.3 per 100,000). The QSurveillance ILI rate was also low
(4.9 per 100,000).
The weekly proportion of NHS Direct calls for cold/flu in all
ages and fever in the 5-14 year group for week 37 (0.7%
and 4.9% respectively) remains below threshold levels.

...

All ten samples submitted in week 39 through the English
GP-based sentinel schemes were negative for influenza.
In week 39, all of the 344 respiratory specimens reported to
the English Respiratory DataMart system were negative for
influenza (Figure 2). Proportions of specimens positive were
unchanged for parainfluenza (3.7%), adenovirus (3.8%),
rhinovirus (27.1%), respiratory syncytial virus (RSV) (1.0%)
and hMPV (0.4%).
One influenza A/H1N1 (2009) virus has been characterised
since week 20 by the HPA Respiratory Virus Unit and is
similar to the A/California/07/2009 vaccine strain.
No new influenza A/H1N1 (2009) viruses have been found to
carry the H275Y mutation which confers resistance to the
antiviral drug oseltamivir since week 20.

...

In week 38, the Office for National Statistics reported 8,527 all-cause estimated death registrations in
England and Wales, slightly less than the 8,612 reported in week 37 and remaining within expected
levels for this time of year as calculated by the HPA.

...
http://www.hpa.org.uk/web/HPAwebFile/HPAweb_C/1317130965576
 
Re: 2011-2012: HPA Weekly National Influenza Reports. Week 40

Re: 2011-2012: HPA Weekly National Influenza Reports. Week 40

Summary of UK surveillance of influenza and other seasonal respiratory illnesses
13 October 2011 ? Week 41

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
13 October 2011 ? Week 41
Influenza activity in week 40 2011 in the UK remains low. Influenza activity remains low in England, Wales, Scotland and Northern Ireland. o In week 40 (ending 9 October), the weekly primary care ILI consultation rate was low in England (5.2 per 100,000), Wales (4.6 per 100,000), Northern Ireland (14.6 per 100,000) and Scotland (7.6 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever was below threshold levels.
o No acute respiratory disease outbreaks were reported in week 40. Virology
o Two respiratory specimens reported to Data Mart (England) out of 305 were positive for influenza (influenza A/H1N1 (2009) and influenza B). The proportion of positive samples remained stable for adenovirus, rhinovirus, hMPV, RSV and parainfluenza. Mortality
o Excess all cause mortality remains within expected levels for this time of year as calculated by the HPA. Influenza vaccination
o Up to the week ending 9 October, 23.5% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 12.8%.
o Amongst pregnant women the provisional uptake was 4.7%.

International situation
o Global influenza activity remains low in the temperate regions of the northern hemisphere, with some transmission reported in countries in the tropical zone.
o Influenza activity is decreasing or low in the temperate regions of the southern hemisphere.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131035819
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
20 October 2011 ? Week 42

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
20 October 2011 ? Week 42

Influenza activity in week 41 2011 in the UK remains low. Influenza activity remains low in England, Wales, Scotland and Northern Ireland.
o In week 41 (ending 16 October), the weekly primary care ILI consultation rate was low in England (6.5 per 100,000), Wales (7.6 per 100,000), Northern Ireland (18.1 per 100,000) and Scotland (6.4 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever were below threshold levels.
o One acute respiratory disease outbreak of influenza A was reported in week
41.

Virology
o None of the 402 respiratory specimens reported to Data Mart (England) tested positive for influenza. The proportion of positive samples increased slightly for parainfluenza, decreased slightly for rhinovirus and remained stable for adenovirus, hMPV and RSV.

Mortality
o Excess all cause mortality remains within expected levels for this time of year as calculated by the HPA.

Influenza vaccination
o Up to the week ending 16 October, 38.0% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 20.9%.
o Amongst pregnant women the provisional uptake was 8.0%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131121583
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
27 October 2011 ? Week 43

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
27 October 2011 ? Week 43
Influenza activity in week 42 2011 in the UK remains low. Influenza activity remains low in England, Wales, Scotland and Northern Ireland. o In week 42 (ending 23 October), the weekly primary care ILI consultation rate was low in England (6.2 per 100,000), Wales (5.3 per 100,000), Northern Ireland (17.5 per 100,000) and Scotland (8.7 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever were below threshold levels.
o One outbreak (due to flu A H3) has been reported since week 40. No outbreaks were reported in week 42. Virology
o One (0.2%) of the 444 respiratory specimens reported to Data Mart (England) tested positive for influenza B. The proportion of positive samples increased for RSV, decreased slightly for rhinovirus and adenovirus and remained stable for hMPV and parainfluenza. Disease severity and mortality
o Two new admissions of confirmed influenza cases to ICU have been reported across the UK.
o Excess all cause mortality remains within expected levels for this time of year for England, Scotland and Wales as calculated by the HPA. Influenza vaccination
o Up to the week ending 23 October, 48.7% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 27.5%.
o Amongst pregnant women the provisional uptake was 11.0%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131208407
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
3 November 2011 ? Week 44

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
3 November 2011 ? Week 44
Influenza activity in week 43 2011 in the UK remains low. Influenza activity remains low in England, Wales, Scotland and Northern Ireland.
o In week 43 (ending 30 October), the weekly primary care ILI consultation rate was low in England (8.2 per 100,000), Wales (2.3 per 100,000), Northern Ireland (14.2 per 100,000) and Scotland (10.3 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever were below threshold levels.
o One outbreak of acute respiratory illness was reported in week 43. Virology
o Two (0.4%) of the 478 respiratory specimens reported to Data Mart (England) tested positive for influenza A (A(H1N1)pdm09 and A(H3)). The proportion of positive samples increased for rhinovirus and adenovirus and remained stable for RSV, hMPV and parainfluenza.
o Positivity in the sentinel GP scheme was 0% in week 43. Disease severity and mortality
o One new admission to ICU of a confirmed influenza case was reported across the UK in week 43.
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA. Influenza vaccination
o Up to the week ending 30 October, 54.8% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 32.2%.
o Amongst pregnant women, the provisional uptake was 13.5%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131319258
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
10 November 2011 – Week 45


Influenza activity in week 44 2011 in the UK remains low.
Influenza activity remains low in England, Wales, Scotland and Northern Ireland.
o In week 44 (ending 6 November), the weekly primary care ILI consultation rate
was low in England (6.6 per 100,000), Wales (2.9 per 100,000), Northern
Ireland (14.0 per 100,000) and Scotland (8.9 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever were below threshold
levels.
o No new acute respiratory disease outbreaks were reported in week 44.

Virology
o None of the 442 respiratory specimens reported to Data Mart (England) tested
positive for influenza in week 44. The proportion of positive samples increased
slightly for RSV and hMPV and remained stable for rhinovirus, adenovirus and
parainfluenza.
o Positivity in the sentinel GP scheme was 0% in week 44.

Disease severity and mortality
o No new admissions to ICU of confirmed influenza cases were reported across
the UK in week 44.
o Excess all cause mortality remains within expected levels for this time of year
for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 6 November, 60.6% of people in England aged 65
years and over had received the 2011/12 influenza vaccine (provisional data).
For those in a clinical risk group aged under 65 years, provisional uptake was
36.6%.
o Amongst pregnant women, the provisional uptake was 15.7%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131414581
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
17 November 2011 ? Week 46

Summary

Influenza activity in week 45 2011 in the UK remains low. Influenza activity increased slightly but remains low in England, Wales, Scotland and Northern Ireland. o In week 45 (ending 13 November), the weekly primary care ILI consultation rate was low in England (8.6 per 100,000), Wales (6.7 per 100,000), Northern Ireland (21.2 per 100,000) and Scotland (10.1 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever were below threshold levels.
o Three new acute respiratory disease outbreaks were reported in week 45.

Virology
o Three (0.6%) of the 470 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 45 (two A(H3) and one B). The proportion of positive samples increased for RSV, decreased slightly for rhinovirus and remained stable for hMPV, adenovirus and parainfluenza.
o Positivity in the UK sentinel GP schemes was 0% in week 45.

Disease severity and mortality
o Four new admissions to ICU of confirmed influenza cases were reported across the UK in week 45 (three A(H1N1)pdm09 and one B).
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 13 November, 64.8% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 40.4%.
o Amongst pregnant women, the provisional uptake was 18.8%.
o Provisional data from the first monthly collection of flu vaccine uptake by frontline healthcare workers show 28.9% were vaccinated by 31 October 2011.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131514189
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
24 November 2011 – Week 47


Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
24 November 2011 – Week 47
Influenza activity in week 46 2011 in the UK remains low. Weekly influenza activity remained low in England, Wales, Scotland and Northern Ireland. o In week 46 (ending 20 November), the weekly primary care ILI consultation rate was low in England (8.7 per 100,000), Wales (7.6 per 100,000), Northern Ireland (19.9 per 100,000) and Scotland (14.4 per 100,000).
o The proportion of NHS Direct calls for cold/flu is approaching the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o One new acute respiratory disease outbreak was reported in week 46.
Virology
o Two (0.3%) of the 640 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 46 (one A unknown subtype and one B). The proportion of positive samples increased for RSV and rhinovirus and remained stable for hMPV, adenovirus and parainfluenza.
o Positivity in the UK sentinel GP schemes was 0% in week 46.
Disease severity and mortality
o Three new admissions to ICU of confirmed influenza cases were reported across the UK in week 46 (one A(H1N1)pdm09 and two A unknown subtype).
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA.
Influenza vaccination
o Up to the week ending 20 November, 67.5% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 44.3%.
o Amongst pregnant women, the provisional uptake was 22.1%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131628393
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
1 December 2011 ? Week 48

Influenza activity in week 47 2011 in the UK remains low.
Weekly influenza activity remained low in England, Wales, Scotland and Northern
Ireland.
o In week 47 (ending 27 November), the weekly primary care ILI consultation
rate was low in England (8.6 per 100,000), Wales (5.6 per 100,000), Northern
Ireland (21.2 per 100,000) and Scotland (17.0 per 100,000).
o The proportion of NHS Direct calls for cold/flu is approaching the early
warning threshold for influenza. The proportion of calls for fever was below
threshold levels.
o One new acute respiratory disease outbreak was reported in week 47.

Virology
o Four (0.6%) of the 713 respiratory specimens reported to Data Mart (England)
tested positive for influenza in week 47 (three A(H3) and one A unknown
subtype). The proportion of positive samples increased for RSV, decreased
for rhinovirus and parainfluenza and remained stable for hMPV and
adenovirus.
o Flu positivity in the UK sentinel GP schemes was 0% in week 47.

Disease severity and mortality
o One new admission to ICU with confirmed influenza was reported through the
USISS mandatory scheme across the UK in week 47.
o One ICU confirmed influenza death has been reported through the USISS
mandatory scheme across the UK in week 47.
o Excess all cause mortality remains within expected levels for this time of year
for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 27 November, 69.4% of people in England aged 65
years and over had received the 2011/12 influenza vaccine (provisional data).
For those in a clinical risk group aged under 65 years, provisional uptake was
45.3%.
o Amongst pregnant women, the provisional uptake was 22.7%.

...

http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131730826
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
8 December 2011 ? Week 49

Influenza activity in week 48 2011 in the UK remains low.
Weekly influenza activity remained low in England, Wales, Scotland and Northern Ireland.
o In week 48 (ending 4 December), the weekly primary care ILI consultation rate was low in England (8.1 per 100,000), Wales (6.2 per 100,000), Northern Ireland (11.7 per 100,000) and Scotland (12.6 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o One new acute respiratory disease outbreak was reported in week 48.

Virology
o One (0.1%) of the 700 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 48 (one B). The proportion of positive samples increased for RSV, decreased for hMPV and remained stable for parainfluenza, rhinovirus and adenovirus.
o Flu positivity in the UK sentinel GP schemes was 0% in week 48.

Disease severity and mortality
o Four new admissions to ICU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 48.
o No ICU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 48.
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 4 December, 70.8% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 47.1%.
o Amongst pregnant women, the provisional uptake was 24.1%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131837604
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
15 December 2011 ? Week 50

Summary

Influenza activity in week 49 2011 in the UK remains low.
Weekly influenza activity remained low in England, Wales, Scotland and Northern Ireland.
o In week 49 (ending 11 December), the weekly primary care ILI consultation rate was low in England (9.2 per 100,000), Wales (8.3 per 100,000), Northern Ireland (9.3 per 100,000) and Scotland (11.6 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o One new acute respiratory disease outbreak was reported in week 49.

Virology
o Nine (1.2%) of the 769 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 49 (four A(H3) and five A unknown subtype). The proportion of samples positive for RSV remained high, decreased for rhinovirus and remained stable for hMPV, parainfluenza and adenovirus.
o Flu positivity in the UK sentinel GP schemes was 3.4% (2/58) in week 49.

Disease severity and mortality
o Three new admissions to ICU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 49.
o No ICU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 49.
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 11 December, 71.7% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 48.3%.
o Amongst pregnant women, the provisional uptake was 25.0%.
o Provisional data from the second monthly collection of influenza vaccine uptake by frontline healthcare workers show 39.9% were vaccinated by 30 November 2011.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317131940790
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
22 December 2011 ? Week 51


Influenza activity in week 50 2011 in the UK remains low.
Weekly influenza activity remained low in England, Wales, Scotland and Northern Ireland. o In week 50 (ending 18 December), the weekly primary care ILI consultation rate was low in England (5.8 per 100,000), Wales (9.1 per 100,000), Northern Ireland (18.2 per 100,000) and Scotland (13.3 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o Two new acute respiratory disease outbreaks were reported in week 50 (one influenza A(H3N2) and one parainfluenza type 1).

Virology
o 14 (1.5%) of the 917 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 50 (four A(H3), nine A unknown subtype and one B). The proportion of samples positive for RSV remains high, with the highest positivity in the under five year olds. The proportion of samples positive for rhinovirus and hMPV increased, decreased for parainfluenza and remained stable for adenovirus.
o No positive influenza detections were recorded in the UK sentinel GP schemes in week 50 2011.

Disease severity and mortality
o Four new admissions to ICU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 50.
o No ICU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 50.
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 18 December, 72.6% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 49.4%.
o Amongst pregnant women, the provisional uptake was 25.7%.
o Provisional data from the second monthly collection of influenza vaccine uptake by frontline healthcare workers show 39.9% were vaccinated by 30 November 2011.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132062898
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
29 December 2011 ? Week 52
Some indicators of influenza activity in week 51 2011 in the UK are starting to increase.
Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 51 (ending 25 December), the weekly primary care ILI consultation rate was low in England (9.0 per 100,000), Wales (9.5 per 100,000), Northern Ireland (16.6 per 100,000) and Scotland (9.7 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o Three new acute respiratory disease outbreaks were reported in week 51 (one influenza A(H3N2), one influenza A(unknown subtype) and one with no virological confirmation).

Virology
o 44 (4.9%) of the 899 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 51. The majority of positive samples were influenza A(H3) (27 A(H3), 16 A unknown subtype and one A(H1N1)pdm09). The proportion of samples positive for RSV remains high, with the highest positivity in the under five year olds. The proportion of samples positive for hMPV increased and remained stable for parainfluenza, rhinovirus and adenovirus.
o One influenza A(H3) detection was recorded in the UK sentinel GP schemes in week 51 2011.

Disease severity and mortality
o One new admission to ICU with confirmed influenza was reported through the USISS mandatory scheme across the UK in week 51.
o No ICU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 51.
o Excess all cause mortality remains within expected levels for this time of year for England, Wales and Scotland as calculated by the HPA.

Influenza vaccination
o Up to the week ending 18 December, 72.6% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 49.4%.
o Amongst pregnant women, the provisional uptake was 25.7%.
o Provisional data from the second monthly collection of influenza vaccine uptake by frontline healthcare workers show 39.9% were vaccinated by 30 November 2011.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132122503
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132193164
5 January 2012 ? Week 1

Due to bank holidays in week 52 (ending 1 January 2012) GP surgeries were only open for three days, which will have impacted on GP consultation rates so data should be interpreted with caution.
Some indicators of influenza activity in week 52 2011 in the UK have increased, although overall influenza activity remains at low levels. Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 52 (ending 1 January 2012), the weekly primary care ILI consultation rate was low in England (6.9 per 100,000), Wales (7.8 per 100,000), Northern Ireland (20.8 per 100,000) and Scotland (8.9 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o No new acute respiratory disease outbreaks were reported in week 52 2011.
Virology
o 42 (5.4%) of the 776 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 52. The majority of positive samples were influenza A(H3) (21 A(H3), 20 A unknown subtype and one B). The proportion of samples positive for RSV remains high, with the highest positivity in the under five year olds. The proportion of samples positive for hMPV decreased and remained stable for parainfluenza, rhinovirus and adenovirus.
o Four influenza A(H3) detections and one influenza B detection were recorded in the UK sentinel GP schemes in week 52 2011.
Disease severity and mortality
o 13 new admissions to ICU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 52.
o Two ICU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 52.
Influenza vaccination
o Up to the week ending 1 January 2012, 73.3% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 50.2%.
o Amongst pregnant women, the provisional uptake was 26.0%.
o Provisional data from the second monthly collection of influenza vaccine uptake by frontline healthcare workers show 39.9% were vaccinated by 30 November 2011.
International situation
o Global influenza activity remains at low levels in the temperate regions of the northern hemisphere, with countries in the tropical zone mostly reporting low activity.
o Transmission in the temperate countries of the southern hemisphere is at inter-seasonal levels. HPA guidance on the use of antiviral agents for the treatment and prophylaxis of influenza this season is available on the HPA website.
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses 12 January 2012 ? Week 2
Due to bank holidays in week 1 (ending 8 January 2012) GP surgeries were only open for four days, which will have impacted on GP consultation rates so data should be interpreted with caution.
Overall influenza activity remains at low levels in week 1 2012 in the UK. Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 1 (ending 8 January 2012), the weekly primary care ILI consultation rate was low in England (9.7 per 100,000), Wales (10.5 per 100,000), Northern Ireland (19.6 per 100,000) and Scotland (13.7 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o One new acute respiratory disease outbreak was reported in week 1 2012.

Virology
o 20 (2.4%) of the 832 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 1. The majority of positive samples were influenza A(H3) (15 A(H3), 4 A unknown subtype and one B). The proportion of samples positive for RSV remains high, with the highest positivity in the under five year olds. The proportion of samples positive for hMPV, parainfluenza, rhinovirus and adenovirus remained stable.
o Four influenza A(H3) detections and one influenza B detection were recorded in the UK sentinel GP schemes in week 1 2012, an overall positivity of 7.9%.

Disease severity and mortality
o Five new admissions to ICU/HDU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 1.
o No new ICU/HDU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 1.
o Excess all-cause mortality remains within expected levels for this time of year for England and Wales up to week 52 as calculated by the HPA with the EuroMOMO algorithm. Scotland reported a small excess seen in 0-4years in week 1 2012.

Influenza vaccination
o Up to the week ending 8 January 2012, 73.3% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 50.5%.
o Amongst pregnant women, the provisional uptake was 26.3%.
...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132298029
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

Summary of UK surveillance of influenza and other seasonal respiratory illnesses
19 January 2012 ? Week 3


Overall influenza activity remains at low levels in week 2 2012 in the UK. Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 2 (ending 15 January 2012), the weekly primary care ILI consultation rate was low in England (7.8 per 100,000), Wales (7.2 per 100,000), Northern Ireland (25.4 per 100,000) and Scotland (14.1 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o One new acute respiratory disease outbreak was reported in week 2 2012. Virology
o 28 (3.6%) of the 770 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 2. The majority of positive samples were influenza A(H3) (25 A(H3) and three A unknown subtype). The proportion of samples positive for RSV decreased, with the highest positivity in the under five year olds. The proportion of samples positive for hMPV increased slightly, and remained stable for parainfluenza, rhinovirus and adenovirus.
o Four influenza A(H3) detections were recorded in the UK sentinel GP schemes in week 2 2012, an overall positivity of 3.8%. Disease severity and mortality
o Eight new admissions to ICU/HDU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 2.
o No new ICU/HDU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 2.
o Excess all-cause mortality remains within expected levels for this time of year for England and Wales up to week 2 as calculated by the HPA with the EuroMOMO algorithm. No excess mortality was seen in Scotland in the last four weeks. Influenza vaccination
o Up to the week ending 15 January 2012, 73.6% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 50.9%.
o Amongst pregnant women, the provisional uptake was 26.5%.
o Provisional data from the third monthly collection of influenza vaccine uptake by frontline healthcare workers show 43.0% were vaccinated by 31 December 2011. International situation
o Influenza activity in the temperate regions of the Northern hemisphere remains mostly below seasonal threshold levels and is currently dominated by A(H3) viruses.
o Countries in the tropical zone are mostly reporting low activity and transmission in the temperate countries of the southern hemisphere is at typical inter-seasonal levels in most countries. HPA guidance on the use of antiviral agents for the treatment and prophylaxis of influenza this season is available on the HPA website.

http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132398854

http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1284475036543
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
26 January 2012 ? Week 4

Overall influenza activity remains at low levels in week 3 2012 in the UK. Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 3 (ending 22 January 2012), the weekly primary care ILI consultation rate was low in England (6.2 per 100,000), Wales (5.0 per 100,000), Northern Ireland (16.5 per 100,000) and Scotland (12.3 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o Five new acute respiratory disease outbreaks were reported in week 3 2012.

Virology
o 37 (5.8%) of the 634 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 3. The majority of positive samples were influenza A(H3) (32 A(H3), four A no subtype and one B). The proportion of samples positive for RSV remained stable, with the highest positivity in the under five year olds. The proportion of samples positive for hMPV, parainfluenza, rhinovirus, and adenovirus remained stable.
o Four influenza A(H3) detections were recorded in the UK sentinel GP schemes in week 3 2012, an overall positivity of 4.1%.

Disease severity and mortality
o 13 new admissions to ICU/HDU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 3.
o No new ICU/HDU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 3.
o Excess all-cause mortality remains within expected levels for this time of year for England and Wales up to week 3 as calculated by the HPA with the EuroMOMO algorithm apart from a small excess seen in 65+ year olds in week 51 2011. No excess mortality was seen in Scotland in the last four weeks.

Influenza vaccination
o Up to the week ending 22 January 2012, 73.8% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 51.2%.
o Amongst pregnant women, the provisional uptake was 26.5%.
...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132461190
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
2 February 2012 ? Week 5

Overall influenza activity remains at low levels in week 4 2012 in the UK, although some indicators have shown a slight increase. Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 4 (ending 29 January 2012), the weekly primary care ILI consultation rate was low in England (7.8 per 100,000), Wales (5.4 per 100,000), Northern Ireland (16.9 per 100,000) and Scotland (10.0 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza. The proportion of calls for fever was below threshold levels.
o Five new acute respiratory disease outbreaks were reported in week 4 2012.

Virology
o 51 (7.6%) of the 675 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 4, an increase in positivity compared to week 3. The majority of positive samples were influenza A(H3) (42 A(H3), six A unknown subtype and three B). The proportion of samples positive for RSV decreased, with the highest positivity in under five year olds. The proportion of samples positive for hMPV, and rhinovirus decreased and remained stable for parainfluenza and adenovirus.
o Seven influenza A(H3) detections were recorded in the UK sentinel GP schemes in week 4 2012, an overall positivity of 7.4% which is an increase from the previous week.

Disease severity and mortality
o 17 new admissions to ICU/HDU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 4 compared to 13 in week 3.
o One new ICU/HDU confirmed influenza death has been reported through the USISS mandatory scheme across the UK in week 4.
o Excess all-cause mortality remains within expected levels for this time of year for England and Wales in week 4 as calculated by the HPA with the EuroMOMO algorithm. No excess mortality was seen in Scotland in week 4.

Influenza vaccination
o Up to the week ending 29 January 2012, 73.9% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 51.4%.
o Amongst pregnant women, the provisional uptake was 26.4%.

...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132588056
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
9 February 2012 ? Week 6

Overall influenza activity remains at low levels in week 5 2012 in the UK, although some indicators continue to increase. Weekly influenza GP consultation rates remained low in England, Wales, Scotland and Northern Ireland. o In week 5 (ending 5 February 2012), the weekly primary care ILI consultation rate was low in England (10.1 per 100,000), Wales (4.8 per 100,000), Northern Ireland (21.9 per 100,000) and Scotland (12.0 per 100,000).
o The proportion of NHS Direct calls for cold/flu remained below the early warning threshold for influenza despite a moderate increase. The proportion of calls for fever was below threshold levels despite a moderate increase.
o Eleven new acute respiratory disease outbreaks were reported in week 5 2012.

Virology
o 61 (8.2%) of the 747 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 5, an increase in positivity compared to week 3. The majority of positive samples were influenza A(H3) (49 A(H3), ten A unknown subtype and two A(H1N1)pdm09). The proportion of samples positive for RSV increased slightly, with the highest positivity in under five year olds. The proportion of samples positive for hMPV, and rhinovirus increased and remained stable for parainfluenza and adenovirus.
o Sixteen influenza A(H3) detections were recorded in the UK sentinel GP schemes in week 5 2012, an overall positivity of 14.8% which is an increase from the previous week of 7.4%.

Disease severity and mortality
o 23 new admissions to ICU/HDU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 5 compared to 17 in week 4.
o One new ICU/HDU confirmed influenza death has been reported through the USISS mandatory scheme across the UK in week 5.
o Excess all-cause mortality remains within expected levels for this time of year for England and Wales in week 5 as calculated by the HPA with the EuroMOMO algorithm. No excess mortality was seen in Scotland in week 5.

Influenza vaccination
o Up to the week ending 29 January 2012, 73.9% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 51.4%.
o Amongst pregnant women, the provisional uptake was 26.4%.
...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132665193
 
Re: 2011-2012: HPA Weekly National Influenza Reports.

Summary
HPA Weekly National Influenza Report
Summary of UK surveillance of influenza and other seasonal respiratory illnesses
16 February 2012 ? Week 7

Overall influenza activity increased slightly but still remains low in week 6 2012 in the UK. Syndromic indicators are approaching early warning thresholds for influenza. Weekly influenza GP consultation rates increased slightly but remained low in England, Wales, Scotland and Northern Ireland.
o In week 6 (ending 12 February 2012), the weekly primary care ILI consultation rate was low in England (15.6 per 100,000), Wales (9.4 per 100,000), Northern Ireland (25.9 per 100,000) and Scotland (13.6 per 100,000).
o The proportion of NHS Direct calls for cold/flu and fever (5-14yrs) increased slightly and are approaching early warning thresholds for influenza.
o Sixteen new acute respiratory disease outbreaks were reported in week 6 2012.

Virology
o 71 (10.7%) of the 662 respiratory specimens reported to Data Mart (England) tested positive for influenza in week 6, an increase in positivity compared to week 5. The majority of positive samples were influenza A(H3) (57 A(H3), 12 A (subtype not known) and 2 B). The proportion of samples positive for RSV decreased, with the highest positivity remaining in under five year olds. The proportion of samples positive for hMPV, and rhinovirus decreased and remained stable for parainfluenza and adenovirus.
o 23 influenza A(H3) detections were recorded in the UK sentinel GP schemes in week 6 2012, an overall positivity of 24.0% which is an increase from the previous week of 12.2%.

Disease severity and mortality
o 14 new admissions to ICU/HDU with confirmed influenza were reported through the USISS mandatory scheme across the UK in week 6 compared to 25 in week 5*.
o No new ICU/HDU confirmed influenza deaths have been reported through the USISS mandatory scheme across the UK in week 6.
o Excess all-cause mortality remains within expected levels for this time of year for England and Wales in week 6 as calculated by the HPA with the EuroMOMO algorithm. A small excess in mortality was seen in the 0-4 year age group in Scotland in week 6 2012.

Influenza vaccination
o Up to the week ending 29 January 2012, 73.9% of people in England aged 65 years and over had received the 2011/12 influenza vaccine (provisional data). For those in a clinical risk group aged under 65 years, provisional uptake was 51.4%.
o Amongst pregnant women, the provisional uptake was 26.4%.
o The weekly collection of influenza vaccine uptake data has now ceased, the final monthly collection is currently underway.
...
http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317132765449
 
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