CDC: Dominant H3N2 K Subclade Drives Severe U.S. Flu Season With Millions Infected
CDC reports at least 15 million flu cases, 180,000 hospitalizations and 7,400 deaths this season; an H3N2 K subclade now causes over 90% of infections, differing from vaccines.
Overview
CDC estimates at least 15 million influenza cases this season, with roughly 180,000 hospitalizations and 7,400 deaths, the highest hospitalization rates since 2009's H1N1 wave.
Seventeen children have died from influenza this season, nearly doubling in a week, drawing concern from pediatricians and public health officials nationwide.
Genetic sequencing shows an H3N2 K subclade now accounts for over 90% of H3N2 infections and differs from this season’s vaccine strain, possibly reducing vaccine effectiveness.
H3N2 has driven the most hospitalizations and deaths, especially among older adults; the new K variant may explain increased severity and higher hospitalization rates.
Weekly surveillance shows slight declines in infections and fewer medical visits last week, but many states report high activity; officials still urge vaccination for everyone six months and older.
Analysis
Center-leaning sources frame the flu season as a significant public health concern, emphasizing the severity of the situation through expert opinions and statistical data. They highlight the high hospitalization rates and the effectiveness of flu vaccines, while also presenting contrasting views on vaccination from public figures. This balanced approach underscores the urgency of vaccination while acknowledging ongoing debates.