Prior research using electronic health records for Covid-19 vaccine safety monitoring typically focuses on specific disease groups and excludes indivi...Read more

Background Association between messenger RNA (mRNA) COVID-19 vaccines and myocarditis has aroused public concern over vaccine safety. Objectives Th...Read more

Background: Case reports of carditis after BNT162b2 vaccination are accruing worldwide. Objective: To examine the association of BNT162b2 and Coron...Read more

Background: Post-marketing pharmacovigilance data are scant on the safety of Covid-19 vaccines among people with previous SARS-CoV-2 infection compare...Read more

Objective: CoronaVac (Sinovac) Covid-19 vaccine has recently been approved for emergency use by the World Health Organization. However, data on its re...Read more

Evidence on the effectiveness of COVID-19 vaccines among people who recovered from a previous SARS-CoV-2 infection is warranted to inform vaccination ...Read more

Accruing evidence suggests an increased risk of myocarditis in adolescents from messenger RNA COVID-19 vaccines. However, other potential adverse even...Read more