Smash Notes

Why Are Live Vaccines No Longer Used

at 26:12

From the episode: Ep 26 Vaccines part 1: Let's hear it for Maurice

Answer

Because there was a small chance that people could actually get sick from the vaccine itself when a live virus is in the dose. Either the virus could change or mutate a little bit or your immune system might not be strong enough to fight off the vaccine strain.

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