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The Vaccine Adverse Event Reporting System and concerns about transparency and access to data.
authorized for the 2025–2026 season are recommended for people 6 months and older under shared clinical decision-making and are designed to match current circulating strains, with regulators and manuf...
Myocarditis after mRNA COVID-19 vaccination is a rare event that clusters in younger males and is largest after the second dose of the primary series, while the excess risk after booster doses is gene...
A substantial body of evidence shows many childhood vaccines were evaluated in randomized controlled trials that used inert placebos (such as saline) or active comparators, but the use of saline place...
The best-quality evidence from multiple large, controlled epidemiologic studies and public-health reviews shows that SIDS rates are not higher in vaccinated infants and in many studies are lower or un...
No scientifically established mechanism shows that vaccines cause sudden infant death syndrome (SIDS); leading public-health bodies and large epidemiologic studies have found no causal link and in som...