It is found in the water and in the soil and air. Two types of salmonella are especially prone to infect humans: Salmonella typhimurium, which is found in the intestine of birds, pigs and cattle, and Salmonella enteridis which is found mostly in birds.

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Itisfoundinthewaterandinthesoilandair.Twotypesofsalmonellaareespeciallypronetoinfecthumans:Salmonellatyphimurium,whichisfoundintheintestineofbirds,pigsandcattle,andSalmonellaenteridiswhichisfoundmostlyinbirds.