Marco Massari and colleagues investigate the association between myocarditis/pericarditis and COVID-19 mRNA vaccines in individuals aged 12-39 years in Italy.
Damien Foo and colleagues evaluate the association between prenatal influenza vaccination and diagnosis of allergic and autoimmune diseases in childhood.
In a pooled self-controlled case series study, Steven Kerr and colleagues assess the association between first dose ChAdOx1 and BNT162b2 COVID-19 vaccination with cerebral venous sinus thrombosis in England, Scotland and Wales.