Food poisoning

Conditions needed for bacterial growth

  • Warmth: 5-63oc is the optimum temperature range for bacteria growth and us known as the danger zone
  • Moisture: Liquid is added
  • Time: Bacteria divides every 20 minutes, this is called binary fission
  • Suitable Ph: Bacteria reproduces best at neutral Ph 7
  • High risk foods: Foods that are high in protein such as meat, egg, fish and dairy
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campylobacter

What is it?

A spiral shaped food born bacterium and the most common cause of food poisoning.

What food sources can it be found in?

Raw or undercooked meat, particularilly raw poultry, unpasturised milk, untreated water, mushrooms and shell fish.

What are the symptoms?

Nausea, diorrehea, abdominal pain, fever and vomiting.

How can you avoid this?

Cook raw meat (especially poultry) thoroughly, prevent cross contamination, dont wash raw chicken and wash pre packed salads. 

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Ecoli

What is it?

A food born bacterium that lives inside the intestine of humans and animals.

What food sources can it be found in?

Raw or undercooked meat and poultry or related products (eg gravy,) raw sea food products, unpasturised milk or products its made from (eg cheese) and contaminated water.

What are the symptoms?

Kidney failure, vomiting, Diarrohea, fever and abdominal pain.

How can you prevent this?

Avoid cross contamination, thoroughly cook all meat products, wash hands after touching any animals or pets, drink pasturised milk and treated water.

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Listeria

What is it?

A food born bacterial illness that can be very serious for pregnant woman and people with impaired immune systems.

What food sources is it in?

Unpasturised milk or the products its made from, soft cheeses (eg cambert, brie) Ready to eat foods (eg pre packed sandwiches, paté) and unwashed veg contaminated with soil.

What are the symptoms?

Flu like symptoms, nausea or vomiting, diarrohea, can spread to the nervous system and cause convulsions, in rare cases can cause meningitus or septicemia (blood poisoning.)

How can you prevent it?

Avoid cross contamination, reheat ready foods until steaming hot, use pasturised dairy, wash raw veg and store raw meat at the bottom of the fridge (under cooked meat.)

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Salmonella

What is it?

A food born bacterium that is commonly found in the intestinal tract.

What food sources can it be found in?

Egg, raw or undercooked poultry or meat, unwashed fruit and veg and unpasturised milk.

What are the symptoms?

Diorrhea, abdominal pain, fever and vomiting. 

How can you prevent it?

Thoroughly cook meat, poultry and eggs, wash hands after: touching raw meat or egg shells and after using the toilet, wash all fruit and veg and avoid cross contamination.

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Staphylococcus Aureus

What is it?

A food born bacterium that can be transmitted through the air droplets when someone sneezes. Some healthy people carry this bacterium in their nose, the back of their throat and on their skin.

What food sources is it found in?

Ready to eat foods that are hand made (eg sandwhiches,) cooked meats and unpasturised milk and related products.

What are the symptoms?

Vomiting, nausea, abdominal pain and diarrohea.

How can you prevent this?

personal hygiene (hands are the main carrier for bacteria,) wash hands after sneezing or coughing and before food prep and keep cuts covered with a blue plaster when cooking.

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