There Is No Such Thing As a “Bad Flu Shot”

The idea that there is a “bad” flu shot isn’t really correct, says a New York infectious disease physician. The average flu shot contains several strains of the flu. About half of this year’s H3N2 strains are not matching up as well to what has turned out to be in the environment as people would have hoped, explains David Hirschwerk, MD, attending infectious disease physician at North Shore University Hospital in Manhasset. But, “the other strains of the virus that are circulating in the community do match up well,” he says.

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