Cases usually start to decline around this time of year as the weather gets warmer and people spend less time indoors, but UKHSA said it is too soon to judge whether or not norovirus has peaked this season.
UKHSA advises anyone with norovirus symptoms not to visit hospitals and care homes or return to work, school or nursery until 48 hours after symptoms have stopped and not to prepare food for others during this time period.
Amy Douglas, a lead epidemiologist at UKHSA, said: “Norovirus levels are still exceptionally high, and now with multiple genotypes spreading at the same time, people could end up getting infected more than once this season.”.
For every case reported to national surveillance, approximately 288 cases occur in the community, suggesting about 3m cases annually in the UK.
The latest figures show a rise in norovirus across the UK, with reported cases at the highest level in more than a decade.
