Stomach Flu 2024 Symptoms Uk.  — signs and symptoms of norovirus infection may start suddenly and include: Flu will often get better on its own, but it can make some people seriously ill.

 — britain is in the grip of a gastric flu outbreak which has spread from hospitals in scotland to the south coast, health chiefs said today. Gastroenteritis can be caused by viruses, most commonly norovirus, bacteria and parasites.