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machine translated;
Bulletin Epidemiological
Secretariat of Health Surveillance - Ministry of Health
Influenza: Tracking the First 15 Weeks Epidemiological 2013.
Updated 15/04/2013
This is the 1st Epidemiological Bulletin on influenza published in Brazil for the year 2013. From this, will be
published epidemiological updates per week, in order to keep health professionals informed
on viral circulation in order to better guide therapy of severe cases, and allows the identification
behavior of influenza in the country, for decision making in the event of disease incidence above
expected.
Surveillance of Influenza in the country today is done through surveillance of influenza-like illness (SG) and the syndrome
Severe acute respiratory (SARS) and the data is collected through standardized forms and entered into two
information systems (online):
· Information System for Epidemiological Surveillance of Influenza (Flu-SIVEP) -
sobrecasos influenza captures information by means of a network of sentinel surveillance units
ILI (59 units in the country). Generates information on the proportion of visits for syndrome
influenza in emergency relief, the proportion of cases of ILI for influenza A or B and identifies
three types of virus circulating among cases of ILI (SG).
· Information System for Notifiable Diseases (Sinan Influenza Web) -
captainformações about cases of severe acute respiratory syndrome (SARS) and allows hospitalized
besides evaluating the severity and lethality of influenza, the incidence of severe cases by epidemiological week,
viral strains of influenza associated with worse outcomes by age and region of the country, besides
deidentificar the resistance profile of circulating influenza viruses to antivirals for use in clinical practice.
The information presented in this bulletin concerning the sentinel surveillance SG, based on data from 59
sentinel existing since 2000. This year's sentinel surveillance SG will be expanded in the country to
169 unidadese be included sentinel surveillance of SARS in 150 intensive care units. These units
will be distributed in 79 municipalities and there will be a representation of all states, and the federal district.
In the next bulletin will be incorporated, gradually, the data of the new units sentinel.
...
SUMMARY OF THE WEEK EPIDEMIOLOGIC
- In Brazil the percentage of attendance of SG is increasing, but remain below the limit
superioresperado for this time of year. This increase is observed in all geographic regions
country;
- Were collected 1.691amostras cases of SG to the epidemiological week 15 in sentinel.
There was low circulating influenza viruses, with the largest number of positive samples observed in regions
North, where the predominant circulation of RSV, and Northeast with a predominance of RSV and adenovirus. the regions
East, South and Midwest had low circulating respiratory viruses;
- Up to 15 SE, were notificados1.717 SARS cases. Of these, 5.2% (90) were due to influenza. Amediana of
age was 08 (0-97) years and the regions with the highest number of cases of SARS were reported oSudeste
and South;
- The number of deaths from SARS to the SE 14 was 155. Nine deaths were classified as influenza, and
six influenza A (H1N1) pdm09 an Influenza A (H3N2), an influenza A not subtyped (not held
subtyping) and influenza BA southeast region was the one with the highest number of deaths per
Influenza A (H1N1) pdm09 in recent weeks.
Epidemiology of influenza-like illness (SG)
The percentage of attendance of SG between total attendance in 59 sentinel SG in Brazil
is increasing, but remain below the limit superioresperado for this time of year, considering the
period 2004-2012 (Figure 1). This increase is observed in all regions of the country. To calculate the average
upper limit and lower limit were excluded from the years 2009 and 2010 due to pandemic influenza
A (H1N1) pdm09.
...
In 2013, 1,691 samples were collected from cases of SG to the epidemiological week 15. these cases
17.7% (300/1.691) were positive for influenza or other viruses respiratórios.O largest number of
samples with positive results were observed in the North, with 27.2% (144/529) of positive and
Northeast, 29.6% (95/321). In these regions predominated VRS also stressing circulation
influenza in North and Adenovirus in the Northeast (Figure 2).
4
In the Southeast, South and Midwest were low circulating respiratory viruses, with percentages of
positivity of 10.8% (38/352), 4.0% (12/299) and 5.3% (10/187) respectively (Figure 2).
...
EPIDEMIOLOGIC PROFILE OF SEVERE ACUTE RESPIRATORY SYNDROME
SE 15 in 2013 were notificados38casos of Severe Acute Respiratory Syndrome (SARS). The total number of cases
accumulated up estasemana, for the period from symptom onset 30/12/2012 to 13/04/2013, the
1.717casos. Of these 5.2% (90/1.717) were classified as SARS and influenza weeks there was an 24:13
Identification greater influenza virus when compared to the previous weeks. Although
observed increase attendance by ILI in sentinel units, there was no increase
cases of SARS in the South (Figure 4).
...
Among the cases with samples positive for respiratory viruses, 54.0% (68/126) were due to influenza A virus
and 11.9% (15/126) due to influenza virus B. Of which 46 cases classified as Influenza A (H1N1) pdm09, 16
as influenza A (H3) and six non-subtyped influenza A (subtyping not performed). Highlights a predominance of
Influenza A virus (H1N1) pdm09 in recent weeks, with the highest prevalence in the Southeast (Figura5).
...
PROFILE OF DEATHS IN EPIDEMIOLOGIC SARS
In 2013, the total deaths from SARS to the epidemiological week 15, for the period from the early
symptoms of 30/12/2012 to 13/04/2013, foi155. This year, omaior number of deaths from SARS in foiobservado
week1 and at weeks 12, 13 and 14 showed a mortality increase of identification of influenza virus
when compared to the previous week (Figure 7).
...
The regions that have accumulated the highest number of deaths recorded in the period foramSudeste: 63.9% (99/155) and
South: 20.6% (32/155) (Table 2). Nationwide, to epidemiological week 15/2013, the death rate from SARS was
0.08 / 100 000 inhabitants.
Nine deaths were classified as influenza, being six influenza A (H1N1) pdm09, one Influenza A (H3N2),
one not subtyped influenza A (subtyping not performed) and (01) for influenza B.
...
machine translated;
Bulletin Epidemiological
Secretariat of Health Surveillance - Ministry of Health
Influenza: Tracking the First 15 Weeks Epidemiological 2013.
Updated 15/04/2013
This is the 1st Epidemiological Bulletin on influenza published in Brazil for the year 2013. From this, will be
published epidemiological updates per week, in order to keep health professionals informed
on viral circulation in order to better guide therapy of severe cases, and allows the identification
behavior of influenza in the country, for decision making in the event of disease incidence above
expected.
Surveillance of Influenza in the country today is done through surveillance of influenza-like illness (SG) and the syndrome
Severe acute respiratory (SARS) and the data is collected through standardized forms and entered into two
information systems (online):
· Information System for Epidemiological Surveillance of Influenza (Flu-SIVEP) -
sobrecasos influenza captures information by means of a network of sentinel surveillance units
ILI (59 units in the country). Generates information on the proportion of visits for syndrome
influenza in emergency relief, the proportion of cases of ILI for influenza A or B and identifies
three types of virus circulating among cases of ILI (SG).
· Information System for Notifiable Diseases (Sinan Influenza Web) -
captainformações about cases of severe acute respiratory syndrome (SARS) and allows hospitalized
besides evaluating the severity and lethality of influenza, the incidence of severe cases by epidemiological week,
viral strains of influenza associated with worse outcomes by age and region of the country, besides
deidentificar the resistance profile of circulating influenza viruses to antivirals for use in clinical practice.
The information presented in this bulletin concerning the sentinel surveillance SG, based on data from 59
sentinel existing since 2000. This year's sentinel surveillance SG will be expanded in the country to
169 unidadese be included sentinel surveillance of SARS in 150 intensive care units. These units
will be distributed in 79 municipalities and there will be a representation of all states, and the federal district.
In the next bulletin will be incorporated, gradually, the data of the new units sentinel.
...
SUMMARY OF THE WEEK EPIDEMIOLOGIC
- In Brazil the percentage of attendance of SG is increasing, but remain below the limit
superioresperado for this time of year. This increase is observed in all geographic regions
country;
- Were collected 1.691amostras cases of SG to the epidemiological week 15 in sentinel.
There was low circulating influenza viruses, with the largest number of positive samples observed in regions
North, where the predominant circulation of RSV, and Northeast with a predominance of RSV and adenovirus. the regions
East, South and Midwest had low circulating respiratory viruses;
- Up to 15 SE, were notificados1.717 SARS cases. Of these, 5.2% (90) were due to influenza. Amediana of
age was 08 (0-97) years and the regions with the highest number of cases of SARS were reported oSudeste
and South;
- The number of deaths from SARS to the SE 14 was 155. Nine deaths were classified as influenza, and
six influenza A (H1N1) pdm09 an Influenza A (H3N2), an influenza A not subtyped (not held
subtyping) and influenza BA southeast region was the one with the highest number of deaths per
Influenza A (H1N1) pdm09 in recent weeks.
Epidemiology of influenza-like illness (SG)
The percentage of attendance of SG between total attendance in 59 sentinel SG in Brazil
is increasing, but remain below the limit superioresperado for this time of year, considering the
period 2004-2012 (Figure 1). This increase is observed in all regions of the country. To calculate the average
upper limit and lower limit were excluded from the years 2009 and 2010 due to pandemic influenza
A (H1N1) pdm09.
...
In 2013, 1,691 samples were collected from cases of SG to the epidemiological week 15. these cases
17.7% (300/1.691) were positive for influenza or other viruses respiratórios.O largest number of
samples with positive results were observed in the North, with 27.2% (144/529) of positive and
Northeast, 29.6% (95/321). In these regions predominated VRS also stressing circulation
influenza in North and Adenovirus in the Northeast (Figure 2).
4
In the Southeast, South and Midwest were low circulating respiratory viruses, with percentages of
positivity of 10.8% (38/352), 4.0% (12/299) and 5.3% (10/187) respectively (Figure 2).
...
EPIDEMIOLOGIC PROFILE OF SEVERE ACUTE RESPIRATORY SYNDROME
SE 15 in 2013 were notificados38casos of Severe Acute Respiratory Syndrome (SARS). The total number of cases
accumulated up estasemana, for the period from symptom onset 30/12/2012 to 13/04/2013, the
1.717casos. Of these 5.2% (90/1.717) were classified as SARS and influenza weeks there was an 24:13
Identification greater influenza virus when compared to the previous weeks. Although
observed increase attendance by ILI in sentinel units, there was no increase
cases of SARS in the South (Figure 4).
...
Among the cases with samples positive for respiratory viruses, 54.0% (68/126) were due to influenza A virus
and 11.9% (15/126) due to influenza virus B. Of which 46 cases classified as Influenza A (H1N1) pdm09, 16
as influenza A (H3) and six non-subtyped influenza A (subtyping not performed). Highlights a predominance of
Influenza A virus (H1N1) pdm09 in recent weeks, with the highest prevalence in the Southeast (Figura5).
...
PROFILE OF DEATHS IN EPIDEMIOLOGIC SARS
In 2013, the total deaths from SARS to the epidemiological week 15, for the period from the early
symptoms of 30/12/2012 to 13/04/2013, foi155. This year, omaior number of deaths from SARS in foiobservado
week1 and at weeks 12, 13 and 14 showed a mortality increase of identification of influenza virus
when compared to the previous week (Figure 7).
...
The regions that have accumulated the highest number of deaths recorded in the period foramSudeste: 63.9% (99/155) and
South: 20.6% (32/155) (Table 2). Nationwide, to epidemiological week 15/2013, the death rate from SARS was
0.08 / 100 000 inhabitants.
Nine deaths were classified as influenza, being six influenza A (H1N1) pdm09, one Influenza A (H3N2),
one not subtyped influenza A (subtyping not performed) and (01) for influenza B.
...
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