Safety profile of rubella vaccine administered to pregnant women: A systematic review of pregnancy related adverse events following immunisation, including congenital rubella syndrome and congenital rubella infection in the foetus or infant

•The safety of inadvertent rubella vaccination in pregnancy is assessed.•Evidence is limited, often with no unvaccinated comparison group in registers.•No vaccine associated congenital rubella syndrome cases were identified but rubella infection does occur.•No change to policy to avoid pregnancy for one month after vaccination is suggested.•Inadvertent rubella vaccination in pregnancy is not an indication for abortion.