Types of Bacteria and Viruses


A common bacteria causing food poisoning. Sources of salmonella are eggs, poultry, cheese, contaminated fresh vegetables and fruits, and unpasteurized milk.

E. coli
A bacterium that is naturally found in our intestines. Most types of E. coli are harmless, but some, e.g. E. coli 0157:H7, can cause bloody diarrhea, kidney failure, and death. It is found in undercooked meet products, unpasteurized milk and juices, some cheeses, untreated water, and contaminated fruits and vegetables.


A bacterium found in soil and water. Therefore it can be in a variety of raw foods as well as in unpasteurized milk.

A virus that can damage the liver. There are vaccines available for some types of hepatitis but not all. It is spread via contaminated stools from an infected person.

Norwalk Virus
This virus can cause the stomach flu. It is very contagious and is found in contaminated food or drinks. It is a group of viruses that can live on surfaces or be spread through contact with an infected person.

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