How is Salmonella typhi (S typhi) transmitted?

Updated: Aug 19, 2019
  • Author: John L Brusch, MD, FACP; Chief Editor: Michael Stuart Bronze, MD  more...
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The following are modes of transmission of typhoidal salmonella:

  • Oral transmission via food or beverages handled by an often asymptomatic individual—a carrier—who chronically sheds the bacteria through stool or, less commonly, urine

  • Hand-to-mouth transmission after using a contaminated toilet and neglecting hand hygiene

  • Oral transmission via sewage-contaminated water or shellfish (especially in the developing world). [10, 11, 12]

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