Most human illness is caused by one species, called Campylobacter jejuni, but human illness can also be caused by other species. Campylobacter jejuni grows best at the body temperature of a bird, and seems to be well adapted to birds, who carry it without becoming ill.
E. coli O157:H7 and other STECs like E. coli O145 and E. coli O121:H19 produce a toxin called Shiga toxin, which causes illness in humans. E. coli bacteria do not make animals such as livestock and deer, which harbor the bacteria in their intestines, ill.
Read about the Outbreak of E. coli O157:H7 Infections Linked to Romaine Lettuce Learn about E. coli infections and how they can be prevented Escherichia coli (abbreviated as E. coli) are bacteria found in the environment, foods, and intestines of people and animals.
Giardiasis is a diarrheal disease caused by the microscopic parasite Giardia. A parasite is an organism that feeds off of another to survive. Once a person or animal (for example, cats, dogs, cattle, deer, and beavers) has been infected with Giardia, the parasite lives in the intestines and is passed in feces (poop).
Listeria monocytogenes is a foodborne disease-causing bacteria; the disease is called listeriosis. Pregnant women and persons with weakened immune systems are most vulnerable to the Listeria bacterium, which produces symptoms of fever, muscle aches, nausea, and diarrhea when ingested.
Listeriosis is a serious infection usually caused by eating food contaminated with the bacterium Listeria monocytogenes. An estimated 1,600 people get listeriosis each year, and about 260 die. The infection is most likely to sicken pregnant women and their newborns, adults aged 65 or older, and people with weakened immune systems.
Norovirus is a leading cause of foodborne illness. You can get norovirus from contaminated food or water, an infected person, or by touching contaminated surfaces. Norovirus causes inflammation of the stomach, intestines or both. This is called acute gastroenteritis. This leads you to have stomach pain, nausea, diarrhea and vomiting.
Salmonella bacteria are the most frequently reported cause of foodborne illness. Salmonella is a gram-negative, rod-shaped bacilli that can cause diarrheal illness in humans. They are passed from the feces of people or animals to other people or other animals.
Toxoplasmosis is a rare form of food poisoning caused by the parasite Toxoplasma gondii. It is the second leading cause of deaths attributed to foodborne illness in the United States, and the third leading cause of foodborne illness hospitalizations.