There are also ways that bacteria can be harmful to humans and other animals. Bacteria are responsible for many types of human illness, including:
Luckily most of these can be treated with antibiotics, which kill the bacteria.
Bacterial contamination of foods can lead to digestive problems, an illness known as food poisoning.
Bacteria are responsible for many types of diseases in humans.
Some bacteria can contaminate food and cause food poisoning.
Some bacteria have been used as biological weapons by terrorists