US President Donald Trump signed an executive order on Monday calling for a rethink of school vaccine mandates and the separation of the combined measles, mumps and rubella (MMR) shot into three vaccines, despite scientific evidence supporting its safety and amid the country's worst measles outbreak in decades.
US President Donald Trump signed an executive order Monday pushing for a rethink of school vaccine mandates and repeating calls for the measles, mumps and rubella (MMR) vaccine to be separated into three individual shots.