food poisoning
- linked to food of animal andpoultry origins
- water or food contaminated with rat excreta can also transmit the infection
- all ages are affected
- the incidence is highest in infants
- accompanied by severe diarrhoea, fever and abd cramps
- ip is 8-48n hours
- disease last for 1 week or longer
- the organism replicate and invade the epithelial cells of small and large intestine ( not n macrophages ) leading to intestinal lesions and diarrhoea
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