Claim: You are not meant to have unprotected sex after a second dose of the Pfizer Covid-19 vaccine as it could cause birth defects due to genetic manipulation.
Fact-check: Pfizer's Covid-19 vaccine does not cause birth defects - Full Fact
Verdict: this is not advice for everyone who's had the pfizer vaccine. there is no evidence the vaccine causes birth defects. this was a precaution in the vaccine trial, as is standard in many trials, to prevent participants conceiving shortly afterwards, but there was no suspicion of a link with birth defects.
Organisation: Full Fact
Author: Leo Benedictus
Date published: 2022-02-17T00:00:00