http://www.cdph.ca.gov/data/statistics/Pages/CISPDataArchive.aspx
Overall influenza activity in California remained ?sporadic*? during Week 45.
Influenza Report Highlights
? Influenza activity in California continues to be low and within expected activity levels
? Outpatient influenza-like illness (ILI) o 1.8% of patient visits during Week 45 were for ILI, which is similar to Week 44 (1.6%)
? Hospitalization data o 4.5% of Kaiser patients hospitalized during Week 45 were admitted with a pneumonia and/or influenza (P&I) diagnosis, which is higher than Week 44 (3.9%); the percentage of P&I admissions is within expected levels for this time of year
? Influenza virus detections by Respiratory Laboratory Network and Sentinel Laboratories o 22 (1.3%) of 1682 specimens tested were positive for influenza during Week 45, which is similar to Week 44 (1.5%)
? Influenza-associated deaths among patients 0?64 years of age o No laboratory-confirmed influenza deaths were reported during Week 45
? Influenza-associated outbreaks o No laboratory-confirmed influenza outbreaks were reported during Week 45
** CEIP has received eight reports of laboratory-confirmed influenza-associated hospitalizations through Week 44. Data for Week 45 is not presented because results are still being collected and are likely to change.
** During Week 45, no laboratory-confirmed influenza fatalities were reported. To date there have been two reports of laboratory-confirmed influenza-associated deaths among patients <65 years of age during the 2015?2016 influenza season.
(From previous weekly reports: During Week 43, one laboratory-confirmed influenza fatality was reported. The death occurred in the Bay Area region of California. To date CDPH there has been one report of a laboratory-confirmed influenzaassociated death among patients <65 years of age during the 2015?2016 influenza season. During Week 44, one laboratory-confirmed influenza fatality was reported. The death occurred in the Central region of California. To date there have been two reports of laboratory-confirmed influenzaassociated deaths among patients <65 years of age during the 2015?2016 influenza season.)
E. California Border Region Influenza Surveillance Network Data
Virologic Surveillance Update Cumulatively this season, a total of 848 respiratory specimens have been tested from border region clinics; of these, 21 (2.5%) tested positive for influenza. Of the 21 specimens that tested positive, 17 (81.0%) were influenza A and 4 (19.0%) were influenza B. Of the 17 specimens that tested positive for influenza A, 7 (41.2%) were subtyped as A/H3, and 10 (58.8%) had no further subtyping performed. For Week 45, a total of 211 respiratory specimens were submitted for testing; 6 (2.8%) were positive for influenza virus. Of the 6 specimens that tested positive, 4 (66.7%) were influenza A and 2 (33.3%) were influenza B. Of the 4 specimens that tested positive for influenza A, 2 (50%) were subtyped as A/H3 and 2 (50%) had no further subtyping performed.
http://www.cdph.ca.gov/HealthInfo/discond/Documents/Week 45 - FINAL Report.pdf
Overall influenza activity in California remained ?sporadic*? during Week 45.
Influenza Report Highlights
? Influenza activity in California continues to be low and within expected activity levels
? Outpatient influenza-like illness (ILI) o 1.8% of patient visits during Week 45 were for ILI, which is similar to Week 44 (1.6%)
? Hospitalization data o 4.5% of Kaiser patients hospitalized during Week 45 were admitted with a pneumonia and/or influenza (P&I) diagnosis, which is higher than Week 44 (3.9%); the percentage of P&I admissions is within expected levels for this time of year
? Influenza virus detections by Respiratory Laboratory Network and Sentinel Laboratories o 22 (1.3%) of 1682 specimens tested were positive for influenza during Week 45, which is similar to Week 44 (1.5%)
? Influenza-associated deaths among patients 0?64 years of age o No laboratory-confirmed influenza deaths were reported during Week 45
? Influenza-associated outbreaks o No laboratory-confirmed influenza outbreaks were reported during Week 45
** CEIP has received eight reports of laboratory-confirmed influenza-associated hospitalizations through Week 44. Data for Week 45 is not presented because results are still being collected and are likely to change.
** During Week 45, no laboratory-confirmed influenza fatalities were reported. To date there have been two reports of laboratory-confirmed influenza-associated deaths among patients <65 years of age during the 2015?2016 influenza season.
(From previous weekly reports: During Week 43, one laboratory-confirmed influenza fatality was reported. The death occurred in the Bay Area region of California. To date CDPH there has been one report of a laboratory-confirmed influenzaassociated death among patients <65 years of age during the 2015?2016 influenza season. During Week 44, one laboratory-confirmed influenza fatality was reported. The death occurred in the Central region of California. To date there have been two reports of laboratory-confirmed influenzaassociated deaths among patients <65 years of age during the 2015?2016 influenza season.)
E. California Border Region Influenza Surveillance Network Data
Virologic Surveillance Update Cumulatively this season, a total of 848 respiratory specimens have been tested from border region clinics; of these, 21 (2.5%) tested positive for influenza. Of the 21 specimens that tested positive, 17 (81.0%) were influenza A and 4 (19.0%) were influenza B. Of the 17 specimens that tested positive for influenza A, 7 (41.2%) were subtyped as A/H3, and 10 (58.8%) had no further subtyping performed. For Week 45, a total of 211 respiratory specimens were submitted for testing; 6 (2.8%) were positive for influenza virus. Of the 6 specimens that tested positive, 4 (66.7%) were influenza A and 2 (33.3%) were influenza B. Of the 4 specimens that tested positive for influenza A, 2 (50%) were subtyped as A/H3 and 2 (50%) had no further subtyping performed.
http://www.cdph.ca.gov/HealthInfo/discond/Documents/Week 45 - FINAL Report.pdf