Shigella dysenteriae serotype 1, Kolkata, India
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Updated: Aug 29, 2026

Epithelial Cell Infection Analyses with Shigella
Published on: February 9, 2024
Shanta Dutta1, Sharitri Dutta, Phalguni Dutta
1National Institute of Cholera and Enteric Diseases, Kolkata, India. shanta1232001@yahoo.co.in
Abstract:
Since July 2002, bacteriologically confirmed shigellosis cases have increased, and multidrug-resistant Shigella dysenteriae serotype 1 strains have reemerged in patients hospitalized with diarrhea in Kolkata, India. The isolated strains of S. dysenteriae 1 showed resistance to chloramphenicol (80%), ampicillin (100%), tetracycline (100%), co-trimoxazole (100%), nalidixic acid (100%), norfloxacin (100%), and ciprofloxacin (100%). Emergence of fluoroquinolone resistance in S. dysenteriae 1 strains complicated treatment of shigellosis patients. Six strains belonging to provisional serovars of S. dysenteriae were also identified for the first time in patients hospitalized with diarrhea in Kolkata, India.
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