frigidweirdo
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COVID helped to kill off a flu strain. Here's how that will affect influenza vaccines in the future.
A strain of the flu virus has died out, and experts say COVID played a role. As a result, next year's flu shot will protect against three strains, instead of four.
Yep, Covid killed off a strain of the flu
"This fall’s flu shot will be designed to protect you from just three strains of the influenza virus, instead of the usual four, according to the U.S. Food and Drug Administration (FDA). That’s because an entire branch of the influenza family tree has died out, and experts say that's likely due, at least in part, to the COVID pandemic and the precautions many people were taking. Here’s what to know about the now “extinct” Yamagata influenza B virus, what happened to it and how its disappearance will affect next year’s flu vaccines."