A popular anti-vaccine social media account shared a screenshot of a social media user claiming to have developed 34 blood clots after getting a COVID-19 booster. The post received over tens of thousands of engagements.
Misinformation linking COVID-19 vaccines to blood clots is widespread and persistent online. Debunking messaging may explain that there is no evidence that mRNA vaccines increase vaccine risk and that blood clots have been reported as an extremely rare adverse reaction to two non-mRNA COVID-19 vaccines. Messaging may also emphasize that COVID-19 infection increases blood clot risk far more than any COVID-19 vaccine and highlight that viral images of alleged vaccine-related blood clots are almost always unsourced, and, in some cases, are not blood clots at all.