I'm not anti-vaxx, I just don't trust American health agencies. Wouldn't even think twice if this was in most other countries
I'm not anti-vaxx, I just don't trust American health agencies. Wouldn't even think twice if this was in most other countries
In the sense of needing a yearly booster, it's just like the flu. Immunity doesn't last forever, and changes in prevailing strains make your extant immunity less effective.