Measles has been making headlines, with experts saying a "national call to action" needs to be made to ensure children are vaccinated against the potentially deadly virus.Chief executive of the UK Health Security Agency (UKHSA), Professor Dame Jenny Harries, warned measles is spreading among unvaccinated communities, and has encouraged parents to check if their children have had the measles, mumps and rubella (MMR) jab.So, why is measles serious, and what else do you need to know about it?

Measles has been making headlines, with experts saying a "national call to action" needs to be made to ensure children are vaccinated against the potentially deadly virus.Chief executive of the UK Health Security Agency (UKHSA), Professor Dame Jenny Harries, warned measles is spreading among unvaccinated communities, and has encouraged parents to check if their children have had the measles, mumps and rubella (MMR) jab.So, why is measles serious, and what else do you need to know about it?