Birdwatch Note Rating
2021-12-27 20:58:45 UTC - HELPFUL
Rated by Participant: B8994860E462F1A94C71F3FF7083F5A7415D66AE65A62452736A54150C709437
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Original Note:
Historically, the vaccine has been effective in preventing smallpox infection in 95% of those vaccinated. In addition, the vaccine was proven to prevent or substantially lessen infection when given within a few days after a person was exposed to the variola virus. https://www.cdc.gov/smallpox/vaccine-basics/index.html
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