Symptoms and Signs of Salmonella

Medical Author: John P. Cunha, DO, FACOEP
Medically Reviewed on 3/11/2019

Doctor's Notes on Salmonella

Salmonella are a group of bacteria that cause diseases in humans (for example, salmonellosis, gastroenteritis, typhoid fever, and paratyphoid fever), animals, and birds. Salmonella are one of the major causes of gastroenteritis in the world and are considered to be the most common cause of food-borne disease (food poisoning) in the U.S.

Symptoms of Salmonella infection usually begin about 12-72 hours after ingestion of the bacteria and include diarrhea, nausea, abdominal cramps, and vomiting. Fever may occur but usually lasts only one to three days, and all symptoms usually resolve in about three to seven days. Some people infected may develop a slow heartbeat or slightly raised red or rose-colored spots (rose spots) on the chest and abdomen. Symptoms of Salmonella infection depend on the overall health of the infected person and the particular strain infecting the patient.

Must Read Articles:


Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.