3 ms·
Where did you get that definition of a vaccine? Few vaccines, historically, worked perfectly.
by gibba999 5y ago
Where did you get that definition of a vaccine?
Few vaccines, historically, worked perfectly.
- a_conservative 5y agoFrom the article: > It’s important to note childhood vaccines for polio, measles, mumps, rubella and smallpox aren’t leaky; they are considered “perfect” vaccines.
- Wowfunhappy 5y agoSome vaccines (including those) are basically perfect, but they're a minority. It also doesn't logically follow that anything which isn't perfect isn't a vaccine.