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Biden has COVID-19 again

I'm talking about vaccines here not the illness, but you know that. You're being difficult because you want to be. Prior to the covid 19 shots, when people heard or thought vaccine, they thought measles, RSV, Hep A, Hep B etc.

Nope; flu vaccines have been "a thing" for 3+ decades now.
RSV vaccines work for a year or two and need to be re-administered to accommodate new strains as well.
 
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