A National incident has been declared over fears Polio is spreading through Britain for the first time since the 1970s. It has been detected in sewage works in London, with the UK Health and Security Agency calling on parents to check their children are vaccinated.
There hasn't been a widespread community outbreak in decades and officials have said the current risk remains low, The Mirror reports. It is possible that the traces detected in sewage could be from oral vaccines that are often offered abroad.
They contain weakened forms of the virus that don't cause disease, but can be picked up in sewage samples. Vaccines offered in the UK are via an injection which contains an inactivated form of the virus.
