Food and Waterborne Diseases I-1c. Transmission is by ingestion of food and water contaminated by feces. Sometimes it is contracted through eggs from infected hens. Gastroenteritis Caused by S. typhimurium, S. enteriditis and S. newport.
Organisms multiply in the intestine causing abdominal pain and diarrhea.
Treatment - Replace fluid and electrolytes. Organisms bind to the intestinal wall penetrate into Peyer's patch where they invade macrophages and multiply. Intracellular survival is associated with inhibition of oxidative metabolic burst and protection from antibodies. Organisms spread from Peyer's patch to the liver, spleen and blood. In the blood organisms release endotoxins.