The take-up rate of extra polio vaccinations for young children in London, offered after the virus was found in the waste water system, has risen to 23%, NHS figures show.
The programme began in August after tests at Beckton Sewage Works found the disease. Although rare, polio can cause paralysis especially in young children.
Medics recommend all children aged one to nine to get the jab.
Read more at: https://www.bbc.com/news/uk-england-london-63642669