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Response to PoindexterOglethorpe (Reply #4)

Wed Jan 5, 2022, 04:09 AM

5. Sorry, not _quite_ true.

You said, "Which honestly, is very unlike any other vaccines we've ever had. Polio, smallpox, and the like completely prevented the disease."

Looking up smallpox and polio vaccination prevention percentages at the CDC...

https://www.cdc.gov/smallpox/vaccine-basics/index.html
"Historically, the vaccine has been effective in preventing smallpox infection in 95% of those vaccinated."
Boosters were recommended after five years.

https://www.cdc.gov/vaccines/vpd/polio/hcp/effectiveness-duration-protection.html
"Two doses of inactivated polio vaccine (IPV) are 90% effective or more against polio; three doses are 99% to 100% effective."
And so they recommended FOUR doses.

Perhaps there are vaccines among "the like" that do give 100% immunity with one dose; I don't know about that.

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