Health officials report that a new and highly contagious variant of norovirus, known as the “Kawasaki” strain, is sweeping across the United Kingdom this winter. Nicknamed the “winter vomiting bug,” this stomach virus has historically caused thousands of hospital admissions yearly. However, the Kawasaki variant, first identified in Japan in 2014, is responsible for an unprecedented 70% of current norovirus cases in the UK.
Norovirus, a viral infection that leads to severe gastrointestinal distress, typically strikes during the colder months. Symptoms usually appear one to two days after exposure and last two to three days, although recovery can take longer in severe cases. According to Dr. John Burke, Chief Medical Officer at AXA Health, recognizing and managing symptoms early is crucial to prevent further transmission.
Recognizing Key Norovirus Symptoms
The six primary symptoms of norovirus include:
- Nausea
- Vomiting
- Diarrhea
- High temperature
- Headaches
- Exhaustion
Dr. Burke emphasizes that while norovirus symptoms are unpleasant, most cases can be managed at home. He advises avoiding bland foods like toast and crackers to ease the stomach. Small amounts of easily digestible items are recommended for those struggling to keep food down.
Prevention and Self-Care Tips
Norovirus spreads easily through contaminated food, water, and surfaces or contact with infected individuals. As the virus can survive on surfaces, good hygiene is essential. Regular handwashing with soap, disinfecting surfaces with bleach-based cleaners, and avoiding food preparation for others are recommended measures to reduce transmission.
To avoid dehydration—a common risk with vomiting and diarrhea—Dr. Burke urges regular intake of clear fluids and electrolytes. Rest is also essential, with a minimum of 48 hours’ recovery recommended after symptoms subside before returning to work or school.
This season, as norovirus cases surge alongside other winter illnesses like the flu and COVID-19, staying vigilant and practicing cleanliness are vital to protecting oneself and others from infection.

Jaja has a degree in journalism and took classes in international law and business communication. Her career spans roles at prominent international media outlets, including International Business Times, Celebeat and Delightful Philippines. As a news editor, Jaja covered a wide range of beats, including legal, business, economy, cryptocurrency, personal finance, gaming, technology, and entertainment.