This was the fastest vaccine rollout ever
Huh? 40 million doses of the 1957 flu vaccine were delivered within about 6 months of getting a virus sample to the US. Does that not count due to its similarity to existing vaccines?
Huh? 40 million doses of the 1957 flu vaccine were delivered within about 6 months of getting a virus sample to the US. Does that not count due to its similarity to existing vaccines?