This infection can cause fever, diarrhea, vomiting, abdominal cramps, aches, and headaches. 


Animals and Humans; Household pets can contain the bacteria. Eggs and poultry can also be contaminated. Most healthy adults can be protected from the bacteria without getting an infection, however, immunosuppressed individuals, the elderly, and children are more likely to get infected. 

Transmission / Exposure Route

It is a zoonotic disease, so the bacteria is transmitted from animals to humans. It begins when a person ingests contaminated food. It moves to the intestines, then possibly in the liver or spleen. In healthy individuals, the bacteria usually leave the body through feces, as to not cause many health problems. Person to Person transmission can occur through the fecal-oral route.

Case Fatality Ratio

Non-typhoid Salmonella affect approximately 2-3 million people, and cause around 500-2000 deaths.

Incubation Period

Most Salmonella bacteria have an incubation period of 4 to 7 days.


A Gram negative, nonmotile, rod shaped bacteria. It is approximately 2-5 microns long.

Enviromental Survival

It grows in a facultative anaerobic environment, so it can survive in a dry environment for weeks and many months in water.

Dose Response Models

Route: intraperitoneal, Response: death


$$P(response)=1-[1+dose\frac{2^{\frac{1}{a}}-1}{N^{50}} ]^{-a}$$

Optimized parameters:
a = 2.1E-01
N50 = 4.98E+01
LD50 = 4.98E+01
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