TheMeatSite.com - TheMeatSite.com - news, features and articles for the meat processing industry

Norovirus


Image: B.V Prasad

Norovirus is the most common cause of infectious gastroenteritis (diarrhoea and vomiting) in England and Wales. The Illness is generally mild and people usually recover fully within 2-3 days; there are no long term effects that result from being infected. Infections can occur at any age because immunity is not long lasting.

The disease was historically known as 'winter vomiting disease' due to its seasonality and typical symptoms. The disease is more prominent during the winter months but infections can occur at any time of the year. It is also known as small round structured virus (SRSV) or Norwalk-like virus.

Outbreaks of norovirus gastroenteritis are common in semi-closed environments such as hospitals, nursing homes, schools and cruise ships.

Norovirus is highly infectious.

Clinical information

Incubation period:
Usually 24 to 48 hours.

Common clinical features:
Vomiting, diarrhoea, fever.

Reservoir:
Gastrointestinal tract of man.

Transmission:
Person to person by the faecal oral route; risk of infection from aerosols of projectile vomit. Environmental contamination, especially of toilets; gloves should be used by cleaners. Contaminated food and water, especially bivalve molluscs.

Infectivity lasts for 48 hours after resolution of symptoms. The infective dose is extremely low.


Image: B.V Prasad

Norovirus is the most common cause of infectious gastroenteritis (diarrhoea and vomiting) in England and Wales. The Illness is generally mild and people usually recover fully within 2-3 days; there are no long term effects that result from being infected. Infections can occur at any age because immunity is not long lasting.

The disease was historically known as 'winter vomiting disease' due to its seasonality and typical symptoms. The disease is more prominent during the winter months but infections can occur at any time of the year. It is also known as small round structured virus (SRSV) or Norwalk-like virus.

Outbreaks of norovirus gastroenteritis are common in semi-closed environments such as hospitals, nursing homes, schools and cruise ships.

Norovirus is highly infectious.

Clinical information

Incubation period:
Usually 24 to 48 hours.

Common clinical features:
Vomiting, diarrhoea, fever.

Reservoir:
Gastrointestinal tract of man.

Transmission:
Person to person by the faecal oral route; risk of infection from aerosols of projectile vomit. Environmental contamination, especially of toilets; gloves should be used by cleaners. Contaminated food and water, especially bivalve molluscs.

Infectivity lasts for 48 hours after resolution of symptoms. The infective dose is extremely low.

Choose a Disease

Our Sponsors

Partners


Seasonal Picks

Meat Cuts and Muscle Foods - 2nd Edition