47 ms·
CDC deleted the expression "to produce immunity to a specific disease" from the vaccine definition, but still defines: "Immunity: Protection from an infectious
by angelzen 5y ago
CDC deleted the expression "to produce immunity to a specific disease" from the vaccine definition, but still defines:
"Immunity: Protection from an infectious disease. If you are immune to a disease, you can be exposed to it without becoming infected."
https://www.cdc.gov/vaccines/vac-gen/imz-basics.htm https://www.cdc.gov/vaccines/vac-gen/imz-basics.htm
- xg15 5y agoOk, that makes sense. The Covid vaccines don't prevent infection in many cases (though they make infection less likely). That's not a secret.
- Tagbert 5y agoAll the change in definition did was acknowledge that no vaccine is 100% certain of preventing infection. The previous definition could be interpreted as claiming that.