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Pennsylvania 2011-2012 Flu Season: Weeks 45-20 (No New Deaths; Total 11)

Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-17 (Seven New Deaths; Total 11)

Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-17 (Seven New Deaths; Total 11)

Week 17: Sporadic
7 new deaths; total 11

? Overall, there is very little influenza circulating in Pennsylvania.

? One hundred twenty three (123) lab positive influenza cases were reported duirng week 17, down from 169 cases reported the previous week. The number of reported cases declined in all regions of the state.

? 0.4% (less than 1 in 100) of all doctor-visits reported by sentinel physicians were attributed to influenza-like illnesses (ILI), down from 0.5% reported during week 16 and far below the threshold (2.4%).

? Flu-related Emergency Department (ED) remain low in all regions.

? Influenza viruses were detected in half (51%) of 68 respiratory specimens which were submitted to the state lab for confirmatory testing, up from 10% positivity the week before. The increase in positivity is a result of increased testing at three nursing homes with flu outbreaks, the increase does notreflect increasing flu activity statewide.

? 1, 861 total cases have been reported season-to-date. Last season, a total of 19, 039 cases had been reported by this time. The burden of illness reported so far continues to be much lighter than what was seen last season.

? Seven (7) flu-related hospitalizations were reported during week 17, down from 20 reported the week before. Altogether, 193 hospitalizations have been reported season-to-date vs. 1, 563 total hospitalizations which had been reported by this time last season.

? Seven (7) flu-related fatalities were reported during week 7 alone and they were all associated with influenza outbreaks in long term care facitlities and involved individuals over 80 years of age. Season-to-date, 11 total deaths have been reported vs. 86 flu-related deaths reported by this time last season.

? Three flu-related outbreaks were reported during week 17; 9 outbreaks have been reported this season.

? Of the 221 influenza viruses confirmed and subtyped at the state lab; 113/51% were influenza A (H3N2) viruses, 45/22% influenza A (H1N1) viruses, 53/24% influenza B and 6/3% were untypeable influenza type A.
http://www.portal.state.pa.us/portal/server.pt?open=514&objID=557490&mode=2
 
Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-18 (No New Deaths; Total 11)

Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-18 (No New Deaths; Total 11)

Week 18: Regional
No new deaths; total 11

? Overall, influenza activity increased during week 18; a majority of increases occured in the southeastern region of the state

? Two hundred (200) lab positive influenza cases were reported duirng week 18, up from 123 cases reported the previous week. The number of reported cases declined in all regions of the state.

? 0.4% (less than 1 in 100) of all doctor-visits reported by sentinel physicians were attributed to influenza-like illnesses (ILI), down from 0.5% reported during week 16 and far below the threshold (2.4%).

? Flu-related Emergency Department (ED) remain low in all regions.

? Influenza viruses were detected in a tenth (11%) of respiratory specimens which were submitted to the state lab for confirmatory testing, down from 55% positivity the week before.

? 2, 061 total cases have been reported season-to-date. Last season, a total of 19, 039 cases had been reported by this time. The burden of illness reported so far continues to be much lighter than what was seen last season.

? Twelve (12) flu-related hospitalizations were reported during week 18, up from 7 reported the week before. Altogether, 205 hospitalizations have been reported season-to-date vs. 1, 564 total hospitalizations which had been reported by this time last season.

? No flu-related death was reported during week 18, 11 total deaths have been reported vs. 86 flu-related deaths reported by this time last season.

? Two flu-related outbreaks were reported during week 18; 22 outbreaks have been reported this season.

? Of the 234 influenza viruses confirmed and subtyped at the state lab this season; 119/51% were influenza A (H3N2) viruses, 50/22% influenza A (H1N1) viruses, 62/27% influenza B and 6/3% were untypeable influenza type A.
http://www.portal.state.pa.us/portal/server.pt?open=514&objID=557490&mode=2
 
Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-18 (No New Deaths; Total 11)

Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-18 (No New Deaths; Total 11)

Lab positive flu cases reported in Pennsylvania this season-10/02/11-05/05/12 (n=2,061)
Week 18 PA #Positives.jpg
 
Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-19 (No New Deaths; Total 11)

Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-19 (No New Deaths; Total 11)

Week 19: Regional
No new deaths; total 11

· Overall, influenza activity decreased during week 19; the number of outbreaks of flu in long term care facilities also declined.

· One hundred (157) lab positive influenza cases were reported duirng week 19, down from 200 cases reported the previous week. The number of reported cases declined in all regions of the state.

· 0.3% (less than 1 in 100) of all doctor-visits reported by sentinel physicians were attributed to influenza-like illnesses (ILI), down from 0.4% reported during week 16 and far below the threshold (2.4%).

· Flu-related Emergency Department (ED) remain low in all regions.

· Influenza viruses were detected in a tenth (10%) of respiratory specimens which were submitted to the state lab for confirmatory testing, down from 11% positivity the week before.

· 2, 217 total cases have been reported season-to-date. Last season, a total of 19, 095 cases had been reported by this time. The burden of illness reported so far continues to be much lighter than what was seen last season.

· Nine (9) flu-related hospitalizations were reported during week 19, down from 14 reported the week before. Altogether, 214 hospitalizations have been reported season-to-date vs. 1, 569 total hospitalizations which had been reported by this time last season.

· No flu-related death was reported during week 19, 11 total deaths have been reported vs. 86 flu-related deaths reported by this time last season.

· Two flu-related outbreaks were reported during week 19; down from 3 reported the week before. Altogether 23 outbreaks have been reported this season. Most of the outbreaks in long term care facilities have been associated with the A/H3 virus subtypes, which commonly causes severe disease and outcomes among the elderly. Testing of the A/H3 viruses associated with these outbreaks by the state lab has not shown any evidence of resistance to antiviral medications.

· Of the 254 influenza viruses confirmed and subtyped at the state lab this season; 125/49% were influenza A (H3N2) viruses, 53/21% influenza A (H1N1) viruses, 70/28% influenza B and 5/2% were untypeable influenza type A.
http://www.portal.state.pa.us/portal/server.pt?open=514&objID=557490&mode=2
 
Re: Pennsylvania 2011-2012 Flu Season: Weeks 45-20 (No New Deaths; Total 11)

Week 20: Sporadic
No new deaths; total 11

? Overall, influenza activity decreased during week 20; all systems that are used to track the flu in Pennsylvania showed a significant downward trend.

? Nighty three (93) lab positive influenza cases were reported duirng week 20, down from 156 cases reported the previous week. The number of reported cases declined in all regions of the state.

? 0.2% (less than 1 in 100) of all doctor-visits reported by sentinel physicians were attributed to influenza-like illnesses (ILI), down from 0.3% reported during week 16 and far below the threshold (2.4%).

? Flu-related Emergency Department (ED) remain low in all regions.

? Influenza viruses were detected in a tenth (5%) of respiratory specimens which were submitted to the state lab for confirmatory testing, down from 10% positivity the week before. Virus detections in less than 5% of individuals presenting with ILI signals low influenza activity. PA DOH uses submissions to the state lab to monitor circulating viruses.

? 2, 312 total cases have been reported season-to-date. Last season, a total of 19, 096 cases had been reported by this time. The burden of illness reported so far continues to be much lighter than what was seen last season. However, more flu continues to be reported this May than last season.

? Five (5) flu-related hospitalizations were reported during week 20, down from 10 reported the week before. Altogether, 223 hospitalizations have been reported season-to-date vs. 1, 569 total hospitalizations which had been reported by this time last season.

? No flu-related death was reported during week 20, 11 total deaths have been reported vs. 86 flu-related deaths reported by this time last season.

? No flu-related outbreaks were reported during week 20; Altogether 23 outbreaks have been reported this season. Most of the outbreaks in long term care facilities have been associated with the A/H3 virus subtypes, which commonly causes severe disease and outcomes among the elderly. Testing of the A/H3 viruses associated with these outbreaks by the state lab has not shown any evidence of resistance to antiviral medications.

? Of the 254 influenza viruses confirmed and subtyped at the state lab this season; 125/49% were influenza A (H3N2) viruses, 53/21% influenza A (H1N1) viruses, 70/28% influenza B and 5/2% were untypeable influenza type A.
http://www.portal.state.pa.us/portal/server.pt?open=514&objID=557490&mode=2
 
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