How do bacteria cause food poisoning?

Answer 1

Bacteria can cause foodborne illness one of two ways:

# Infection happens when the bacteria are ingested and grow in your digestive tract and make you ill. # Intoxication happens when bacteria have grown in the food and formed a toxin which makes you ill. Intoxication can occur even after the bacteria have been killed off.

Answer 2

Salmonella is a bacteria. It is a gram-negative rod shaped bacilli that lives in the intestinal tracks of people and animals is generally transferred through contact with feces. This does not mean a person would have to actually touch the feces. It could have gotten on the vegetables as they grew in the field. It can occur from meat that is not cooked long enough. It can also be transmitted from food handlers who may not know they are infected and do not wash their hands. If the bacteria are present and grow to high enough levels and they are ingested, a person will get salmonellosis (food poisoning from salmonella).

Answer 3

Food pisoning is most often caused by toxic substances that bacteria found in food produce. The bacteria have grown and multiplied in the food, most often if the food is stored at a certain temperature that must not be too low or too high.

The toxins are sometimes produced when the bacteria grow and multiply in the food before eating it.

Other times the bacteria produce the toxins when they grow and multiply further inside the stomach and intestines after the food has been eaten.

Answer 4

Salmonella, Listeria, E.coli O157, Campylobacter and Clostridium perfringens. Are the five main types that I know! My dad is a food critic hope this helps