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Maggie Osbourne

on 18 September 2013

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Transcript of Norwalk


What is a foodborne illness?
A foodborn illness is when illness occurs after eating contaminated food
Where is Norwalk commonly found?
Norwalk is commonly found in foods such as raw oysters, cake frosting and salads, but also some drinking water
eating these foods, if contaminated is how contact is made and sickness occurs.
What are the symptoms and how long do they last?
The most common symptoms include nausea, vomiting, diarrhea and abdominal cramps.
Less common symptoms are headache, fever and chills.
The incubation period is between 12 and 48 hours
It can last 1-6 days!
How to prevent
Wash hands
avoid bare-hand contact with ready-to-eat foods
Clean and disinfect surfaces
Wash fruits and vegetables and cook oysters

The virus is most often spread from person-to-person on unwashed hands
How does it spread?
Drinking lots of clear fluids while ill is important.
How does it get into the food

It gets into the food supply mostly by people who do not follow basic hygiene rules
Most commonly spread in schools, cruise ships and nursing homes, especially during the winter
Examples in the media
Since September, more than 140 outbreaks in the U.S. have been caused by the new Sydney strain of Norwalk

Last month, 220 people on the Queen Mary II were stricken during a Caribbean cruise.

Children and the elderly are at increased risk of suffering from dehydration as a result of infection
By Maggie Osbourne
Thorough cooking destroys Norwalk! However it can survive for 30 minutes at 60°C
Full transcript