Norovirus Cases Surge in UK, Doubling Five-Year Average

A new dominant variant and waning immunity are driving a sharp increase in norovirus infections, with significant impacts on hospitals and vulnerable populations.

Norovirus cases have risen by 41% in two weeks, reaching more than double the average level for this time of year.
The GII.17 variant has become the most dominant strain, possibly reducing immunity from previous infections.
Outbreaks in hospitals are 37% higher than the five-year average, creating additional pressure on the NHS.
A new mRNA vaccine from Moderna is entering final testing stages, aiming to prevent the virus's spread.
Health officials emphasize the importance of handwashing and avoiding contact with infected individuals to curb transmission.