Muhammad Usman, Karamat Ahmed Karamat, Shahid Ahmed Abbasi.
Six Month follow up Study can Salmonella Typhi and Salmonella Paratyphi A infections for Carrier State.
Pak Armed Forces Med J Jan ;51(1):18-21.

Humans are the only natural reservoir of Salmonella typhi and Salmonella paratyphi A., therefore, the disease can be acquired through proximity with a person who is a chronic carrier. Most often this involves acquisition of organisms via ingestion of food or water contaminated with human excreta. A follow up study was carried out at the Armed Forces institute of Pathology (AFIP) Rawalpindi on 22 patients at two monthly intervals over a period of six months, with the objective to detect Salmonella typhi and Salmonella paratyphi A carrier state among these patients. Follow up investigations included stool cultures for both salmonella infections. None of our cases terminated as chronic carrier for Salmonella typhi and S. paratyphi A.

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