4 ms·
On herd immunity, different diseases (due to how contagious it is, how fast is spreads, etc.) have different rates at which the population must be immunized in
by berberous 8y ago
On herd immunity, different diseases (due to how contagious it is, how fast is spreads, etc.) have different rates at which the population must be immunized in order to provide herd immunity. For example, a quick google search says that Measles is so highly contagious that you need 95%+ immunized to provide herd immunity. In places with lost of anti-vaxxers (e.g. California), you can easily have over 5% of the local population starting to believe this anti-vax non-sense.
As for why herd immunity is important, please read this recent twitter thread from the mother of a young child with cancer: https://twitter.com/SteamLaundry/status/1065153914100604928 https://twitter.com/SteamLaundry/status/1065153914100604928