Flu Cases Are Already Increasing Across the US. Is This Year’s Flu Shot Effective?

Flu cases are already increasing across the US. Is this year’s flu shot effective?

CDC data shows a 30 percent increase in positive tests for the flu over the last week

Flu Activity Running Higher Than Usual For This Time Of Year, CDC Says

Early-season flu activity is higher than typically seen at this time of year, with positive tests, doctor visits and hospitalizations all climbing since late August