All of them! That's how vaccines protect the "herd." This has literally been
explained hundreds of times on CB in the last year alone and many times before COVID (just search for something like "measles Disneyland" and find many examples).
This message has been modified
Originally posted on Sep 22, 2021 at 12:18:26pm
Message modified by Byron McNertney on Sep 22, 2021 at 12:21:57pm