COVID-19 Vaccines and Possible Harms
The report concludes that two messenger ribonucleic acid (mRNA) vaccines, manufactured by Pfizer-BioNTech and Moderna, can cause myocarditis — inflammation of the heart muscle. Evidence suggests the two mRNA vaccines do not cause infertility, Guillain-Barré syndrome, Bell’s palsy, thrombosis with thrombocytopenia syndrome (TTS), or myocardial infarction (heart attack). Evidence also suggests the Pfizer-BioNTech vaccine does not cause ischemic stroke.
Although there are a limited number of published studies on the Janssen vaccine, reflecting its limited use in the U.S., evidence suggests this vaccine may cause TTS and Guillain-Barré syndrome.
The report says that for all conclusions that do not establish a causal link, future studies that estimate effects more precisely or that better minimize bias and confounding variables could lead to a different finding.
https://www.nationalacadem...
The report concludes that two messenger ribonucleic acid (mRNA) vaccines, manufactured by Pfizer-BioNTech and Moderna, can cause myocarditis — inflammation of the heart muscle. Evidence suggests the two mRNA vaccines do not cause infertility, Guillain-Barré syndrome, Bell’s palsy, thrombosis with thrombocytopenia syndrome (TTS), or myocardial infarction (heart attack). Evidence also suggests the Pfizer-BioNTech vaccine does not cause ischemic stroke.
Although there are a limited number of published studies on the Janssen vaccine, reflecting its limited use in the U.S., evidence suggests this vaccine may cause TTS and Guillain-Barré syndrome.
The report says that for all conclusions that do not establish a causal link, future studies that estimate effects more precisely or that better minimize bias and confounding variables could lead to a different finding.
https://www.nationalacadem...
New Comprehensive Review Examines Potential Harms of COVID-19 Vaccination and Intramuscular Vaccination
While the benefits of COVID-19 vaccines in preventing infection are well documented, a new review examines the scientific evidence to determine whether vaccination could cause potential harms.
https://www.nationalacademies.org/news/new-comprehensive-review-examines-potential-harms-of-covid-19-vaccination-and-intramuscular-vaccination
09:29 PM - Jan 10, 2026
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