Dr Hilary Jones sent a message to parents on today's Good Morning Britain.
Thursday's edition of the ITV news programme was hosted by Adil Ray and Charlotte Hawkins. The two were joined by the medical expert, who discussed how concerned people should be after polio was detected in the UK.
Polio was eradicated in Britain in 2003, but the UK Health Security Agency have found the virus in sewage samples in London, collected from the London Beckton Sewage Treatment Works, which serves around four million people in north and east London. Although it is normal for the virus to be picked up as isolated cases and not detected again, experts have raised the alarm after several genetically-linked viruses were found in samples between February and May.
