Flu vaccine is 48% effective this season, CDC says
The flu shot has been reducing the risk of infections in the United States by about half this season, according to reports issued Thursday by the Centers for Disease Control and Prevention, but the season is expected to continue for several more weeks.
Flu Vaccine Market Will Be Unchanged by 48% Effectiveness of Vaccine This Year: Research Firm
You got the flu shot and you still got sick. This might be why
MetroWest is among hardest hit for flu
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