Posted by feww on January 2, 2015
Influenza Activity Continues to Increase in U.S.
Mortality due to influenza and pneumonia has reached “epidemic” levels in the U.S. as flu activity spreads in 36 states, reported the Centers for Disease Control and Prevention (CDC).
Pneumonia and Influenza (P&I) Mortality Surveillance:
During week 51 (December 14-20, 2014), 6.8% of all deaths reported through the 122 Cities Mortality Reporting System were due to P&I. This percentage was at the epidemic threshold of 6.8% for the week.
Between October 1, 2014 and December 20, 2014, 2,643 laboratory-confirmed influenza-associated hospitalizations were reported. The overall hospitalization rate was 9.7 per 100,000 population. The highest rate of hospitalization was among adults aged ≥65 years (38.3 per 100,000 population), followed by children aged 0-4 years (13.4 per 100,000 population). Among all hospitalizations, 2,529 (95.7%) were associated with influenza A, 100 (3.8%) with influenza B, nine (0.3%) with influenza A and B co-infection, and five (0.2%) had no virus type information. Among those with influenza A subtype information, 760 (99.9%) were H3N2 virus and one (0.1%) was 2009 H1N1. Continue reading