Knvul Sheikh

FILE – In this Jan. 12, 2018, file photo, a medical assistant at a community health center gives a patient a flu shot in Seattle. U.S. health officials say the flu vaccine has again turned out to be a disappointment. The vaccine didn’t work against a flu bug that popped up halfway through the season. Figures released Thursday, June 27, 2019,  show the vaccine was only 29% effective overall.   (AP Photo/Ted S. Warren, File) NYCD505

Why you need a flu shot

As brisk fall winds sweep in, so does the annual flu season. The timing of the onslaught can vary, but influenza cases typically start to...