Norovirus

What is it?

Norovirus is a highly contagious viral infection that causes gastroenteritis, a stomach, and intestinal disease. Norovirus infections are highly contagious and are a leading cause of gastroenteritis worldwide. Norovirus outbreaks can occur any time of the year, although more common during winter.

 

What are the symptoms?

Norovirus infection can begin suddenly and cause the following signs and symptoms

 

Nausea

Vomiting

Cramping or pain in the stomach

Loose or watery diarrhoea

Feeling unwell

Fever

Muscle aches and pains

Signs and symptoms usually appear between 12 and 48 hours after the first exposure to the virus, typically lasting between 1 and 3 days. 

 

Transmission

Norovirus is highly contagious and may spread through

Direct contact with the vomit or faeces of an infected person

Close contact with infected people 

Touching contaminated objects or surfaces

Eating contaminated food or drink

Poor hand hygiene

 

Diagnosis

The Doctor may order a faecal sample and blood tests to be sent to the pathology lab. A rapid stool test can identify rotavirus and norovirus. 

 

Outbreak definition

An outbreak of norovirus is where two or more people, residents or employees, become ill with vomiting or diarrhoea within 24 hours of each other.  An outbreak needs to be reported to the public health unit. 

Commence a spreadsheet detailing the following

Names of the residents and employees who have symptoms

Date of onset of symptoms

Type of symptoms

When symptoms resolve