UK Health Officials Alert Citizens to Possible Second Norovirus Wave

Synopsis

UK health authorities are warning about a potential second wave of norovirus, as new data indicates a shift in circulating strains and rising case numbers. The situation is particularly concerning for older adults and those in care facilities.

Key Takeaways

Potential second wave of norovirus in the UK.
Cases have surged to the highest levels since 2014.
Significant increase among the elderly population.
Change in circulating strains, notably GII.17 and GII.4.
Symptoms typically arise one to two days after infection.

London, Feb 28 (NationPress) Health authorities in the United Kingdom (UK) have issued a warning this week regarding a potential second wave of norovirus, as new data reveals a change in circulating strains.

The most recent statistics from the UK Health Security Agency (UKHSA) indicate that norovirus cases are increasing nationwide, reaching the highest levels recorded since monitoring began in 2014.

According to the UKHSA, cases of the virus surged nearly 30 percent between February 3 and 16 compared to the preceding two weeks, and are more than double the five-season average.

The situation is particularly critical in hospitals and care facilities, with the highest incidence among individuals aged 65 and older, as reported by the health agency.

Typically, cases begin to decline around this time of year as temperatures rise, but the UKHSA cautions that it is premature to determine if norovirus has reached its peak this season.

The new data also indicates a shift in circulating strains, with the surge in cases this season linked to the novel GII.17 genotype. Furthermore, the GII.4 genotype is also on the rise, as reported by the Xinhua news agency.

Symptoms commonly associated with norovirus infection include vomiting, diarrhea, and stomach cramping. In some instances, it may also lead to low-grade fever or chills, headaches, and muscle aches. These symptoms generally surface one or two days after infection.

A notably high number of norovirus outbreaks were also documented in the United States during December.

The Centers for Disease Control and Prevention (CDC) indicates that outbreaks can happen year-round, although they are most prevalent between November and April.

This highly contagious virus affects an estimated 19 to 21 million individuals across the nation annually, leading to sudden and distressing gastrointestinal symptoms, according to the CDC.