“Mayo Clinic study shows Pfizer vaccine dropped to 42% effective.”
Social media posts
Instagram. Claim dated 12 Aug 2021.
PolitiFact rated thisHalf True
What PolitiFact found
The study of people who received at least one dose of the two-shot vaccines said Pfizer’s effectiveness in preventing COVID-19 dipped to 42% in July. Pfizer and Moderna are highly effective in preventing hospitalization.
Their words, from the summary they publish with the rating.
In short
This claim spread on social media around 12 August 2021. PolitiFact (United States) looked into it and published its finding on 17 August 2021, 5 days later. Its rating was “Half True”.
Where the claim appeared
- Instagram posthttps://www.instagram.com/p/CSdnxMzAnAe/?utm_source=ig_embed&ig_rid=064a72a9-19e0-4c0e-94…
Links recorded by PolitiFact. Some posts may have been deleted since.
This check was done by PolitiFact, not by DoesItStand. We list it so you can find it. Their full evidence and reasoning are in their article.