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The vaccines kids have to get have a very high (near certainty) probability of preventing them from contracting the particular illness.

The covid vaccines do not. People are still getting covid after being vaccinated. This is happening a lot.

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The COVID vaccines reduce the risk of infection by a factor of 4 and the risk of serious disease by a factor of over 100. You’re right that vaccinated people still get COVID but the vaccines do a very good (if not quite perfect) job of protecting people and stopping spread to others.

Thanks to herd immunity, which we're not going to reach with COVID because of anti-vaxxers.

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