Norovirus: Symptoms, Duration, And UK Cases

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Post on Nov 01, 2024

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Norovirus: Symptoms, Duration, and UK Cases

Norovirus, also known as the winter vomiting bug, is a highly contagious virus that can cause severe vomiting and diarrhoea. It's a common illness, especially during the winter months, and can affect people of all ages. In this article, we'll delve into the symptoms, duration, and prevalence of norovirus in the UK.

What are the Symptoms of Norovirus?

The most common symptoms of norovirus are:

• Sudden onset of vomiting: This is often the first symptom and can be very intense.
• Diarrhoea: Loose, watery stools are another hallmark symptom.
• Nausea: Feeling sick to your stomach is common before vomiting.
• Stomach cramps: Abdominal pain can accompany the vomiting and diarrhoea.
• Headache: Some people also experience headaches.
• Fever: Although less common, some individuals may experience a mild fever.
• Fatigue: You may feel tired and weak.

Important note: Symptoms typically appear between 12 and 48 hours after exposure to the virus.

How Long Does Norovirus Last?

The duration of norovirus symptoms typically ranges from 12 to 60 hours. Most people feel better within 2-3 days. However, some individuals may experience lingering fatigue or diarrhoea for a few days longer.

How Does Norovirus Spread?

Norovirus is spread through faecal-oral transmission. This means the virus is transmitted through:

• Contact with an infected person: Direct contact with an infected person, even just shaking hands, can spread the virus.
• Touching contaminated surfaces: Norovirus can survive on surfaces for days and be spread if you touch the contaminated surface then your mouth or food.
• Eating contaminated food: Norovirus can contaminate food if it's handled by someone who is infected.
• Drinking contaminated water: In rare cases, norovirus can contaminate water supplies.

Norovirus Cases in the UK

Norovirus is highly prevalent in the UK, especially during the winter months. The UK Health Security Agency (UKHSA) monitors norovirus activity and publishes weekly reports. According to these reports, norovirus cases typically peak between December and February.

The exact number of cases is difficult to estimate as many people with norovirus don't seek medical attention. However, the UKHSA estimates that millions of people are affected by norovirus each year.

How to Prevent the Spread of Norovirus

• Wash your hands frequently: This is the most effective way to prevent norovirus. Wash your hands thoroughly with soap and water, especially after using the toilet, changing diapers, and before preparing food.
• Disinfect surfaces: Regularly disinfect surfaces that may be contaminated, such as door handles, toilets, and sinks.
• Avoid close contact with infected people: If you are sick, avoid close contact with others to prevent spreading the virus.
• Wash your clothes and linens: Wash contaminated clothes and linens with hot water and detergent.
• Practice good hygiene: Don't share utensils or food with others, cover your mouth when coughing or sneezing, and wash your hands frequently.

When to See a Doctor

Most people recover from norovirus without needing medical attention. However, you should seek medical advice if:

• You are experiencing severe symptoms, such as persistent vomiting or diarrhoea.
• You are dehydrated, as evidenced by dry mouth, sunken eyes, and decreased urination.
• You are concerned about your health.

Summary

Norovirus is a highly contagious virus that causes vomiting and diarrhoea. It's common in the UK, particularly during the winter months. While most people recover within a few days, it's important to practice good hygiene and seek medical advice if you experience severe symptoms or dehydration.