Microbiology General 879995a9

Salmonella typhi is the causative agent of typhoid fever. The infective dose of S.typhi -

One bacillus

108 - 1010 bacilli

102 - 105 bacilli

1 - 10 bacilli

High-Yield Explanation

All Salmonella infections begin with ingestion of organisms, most commonly in contaminated food or water. The infectious dose is 103–106 colony-forming units.

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