‘Individuals are contagious from the moment symptoms begin’
Dr Angad Dhillon, a consultant gastroenterologist with Doctify, has issued a warning about the ongoing threat of Norovirus in the UK. The stomach flu-like illness has seen a surge in cases over the festive period and, while many people may not require medical intervention, Dr Dhillon has highlighted four groups who are at risk of suffering a severe version of the disease.
These include young children, elderly individuals, those with compromised immune systems, and pregnant women. The expert warned: “As few as 10 virus particles can cause a norovirus infection, making it one of the most contagious viruses. Individuals are contagious from the moment symptoms begin until at least 48 hours after they resolve.”
These groups, he explained, have immune systems that might not be as effective in combating the virus and are also at a high risk of complications related to dehydration caused by norovirus. For these individuals, prevention is crucial.
He advised: “Hand sanitisers aren’t enough against norovirus, thorough handwashing with soap and water is the most effective prevention method. Wash hands frequently with soap and water, as alcohol-based sanitisers are less effective against norovirus.
“Food safety is also important, thoroughly cook seafood and wash fruits and vegetables before consumption. Staying home when ill is also advised when ill, so you should avoid public places and close contact with others when experiencing symptoms and for at least 48 hours after recovery.”
Norovirus, also known as the winter vomiting bug, is notoriously difficult to avoid and can remain on surfaces for days. Posing significant risks in households where one person falls ill.
Dr Dhillon said: “Norovirus is a common but preventable cause of gastroenteritis. By understanding its transmission, recognising symptoms, and implementing proper care and hygiene practices, individuals can recover effectively and minimise the risk of spreading the virus. If symptoms persist or worsen, consulting a healthcare professional is advisable.”
Crucial symptoms to look out for, according to Dr Dhillon, include:
- Nausea and vomiting which can strike rapidly and with intensity
- Diarrhoea that may cause dehydration
- Abdominal cramps, pain and discomfort
- A low-grade fever
- Chills
- Muscle pains
- Tiredness
Detailed advice regarding norovirus and guidance on when to seek help is available on the NHS website.