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  1. Salmonella is present in the food that causes food infection. From the food, it infect the other organism. The food that is involved in the transmission of bacteria in raw or undercooked meat, poultry, eggs or egg products. Bacteria enter into the stomach and then go into the intestine. Salmonella is intracellular pathogen. Bacteria are present in the feces of the patient. From feces, it may transmit to the food by using sewage water. Sewage contamination in food leads to the contamination of foods. The sewage contaminations are due to pipe leakage and mixing of sewage water with the food.

    In intestine, it adheres to enterocyte and invades in the cell. Bacteria increase adenylate cyclase activity. This increases the cAMP level of the intestine that leads to diarrhea. The inflammation of intestine starts when cell lysis occurs. This inflammation is called gastroenteritis. In intestine, The incubation period ranges from several hours to two days. After incubation period, the symptoms include are

    • Nausea
    • Vomiting
    • Abdominal cramps
    • Diarrhea
    • Blood in the stool

    From the intestine, it adheres to the blood vessel and causes bacteremia. Bacteria affect many organs when it enters the blood.

    • Fever
    • Chills
    • Headache

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