The UK Health Security Agency (UKHSA) said there is now 222 cases of hepatitis in children aged 10 and under in the country.
Of those confirmed, 158 are residents in England, 31 are in Scotland, 17 are in Wales and 16 are in Northern Ireland. A further 20 cases of the illness have been confirmed today, May 27.
One of the main concerns for health professionals is the severity of the disease in these young, otherwise healthy children.