(Undated) — Influenza vaccines have been 42-percent effective so far this season. That’s according to recent estimates from the CDC, which are from ongoing studies that are backed by the agency.
The vaccines were estimated to be at least 41-percent effective in protecting adults against influenza hospitalization. For children, vaccines were estimated to be 52-percent to 61-percent effective. But the head of the CDC’s influenza prevention and control team says there could be fewer hospitalizations and deaths prevented in the U.S. if vaccination rates go down.
Flu activity can last until May, according to the CDC.
