The important norovirus tip as cases of 'winter vomiting bug' are on the rise

Norovirus
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An important tip to help dodge norovirus has been issued as cases of the "winter vomiting bug" are on the rise. Health chiefs have said they are seeing their usual seasonal rise in cases of the bug.

While an increase is expected the numbers with the virus are more than 100% up on the same autumn period last year. Norovirus is a nasty stomach bug that causes vomiting and diarrhoea.

It can be very unpleasant, but usually goes away in about two days although can be more serious for vulnerable people. For families it can often trigger a spread through the household that leaves the bug around for days.

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There are tips to help avoid the bug and one that many may not know. During the pandemic bottles of alcohol-based hand sanitiser became ubiquitous - carried in pockets and handbags and brought out on a regular basis.

And they do help in the battle against many viruses particularly when people are on the move and can't wash their hands.

But these alcohol based sanitisers cannot kill norovirus because the alcohol, regardless of percentage, cannot penetrate the capsid, the protein shell of a virus particle surrounding its nucleic acid. So using them could give a false sense of security that you're protecting yourself from the bug.

Christopher Williams, Consultant Epidemiologist at Public Health Wales, said: “Preventing the spread of norovirus relies on regular and thorough handwashing. We recommend washing hands frequently with soap and warm water, especially after using the toilet and before eating or preparing food.

"Alcohol-based hand sanitisers are not effective against norovirus, so proper handwashing is essential. Additionally, those experiencing symptoms should stay at home for at least 48 hours after symptoms have subsided to prevent further transmission. For further advice on protecting yourself and others from gastrointestinal infections, visit the NHS 111 website.”

The main symptoms of norovirus are:

  • feeling sick (nausea)

  • diarrhoea

  • being sick (vomiting)

You may also have:

  • a high temperature

  • a headache

  • aching arms and legs

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