Haitian variant Vibrio cholerae O1 Ogawa caused cholera outbreaks in Odisha.

Purpose: Diarrheal disorders particularly cholera cause a significant threat resulting in high morbidity and mortality in the coastal and tribal areas of Odisha. Two sequential diarrheal outbreaks reported in 2016 from Balasore and Rayagada districts of Odisha were investigated to find out the causative organisms, antibiogram profile and molecular analysis of the isolated pathogens.

Method: Bacteriological analysis and antibiogram profiles of the pathogens were carried out as per the standard procedure followed.

Environmental reservoirs of Vibrio cholerae serogroups in the flowing freshwater environs from the tribal areas of Odisha, Eastern India.

The environmental reservoirs of different serogroups of Vibrio cholerae causing cholera in the flowing freshwater bodies of the tribal areas of Odisha are not known. So the present study was conducted from June 2017 to March 2020 to find out the environmental reservoirs of V. cholerae serogroups in the water and plankton samples collected from the river, nala, stream and chua from Rayagada district.

Dissemination of Polymyxin B Sensitivity in El Tor Vibrio cholerae O1 Strains in Odisha, India.

The Vibrio species undergo cryptic changes in their genetic material for better adaptability, which accounts for antibiotic resistance. In the present study, we investigated the emergence and spread of sensitivity to polymyxin B (PB) by El Tor V. cholerae O1 strains from 1995 to 2019 in Odisha, India.

Vibrio cholerae O1 Ogawa Strains Carrying the ctxB7 Allele Caused a Large Cholera Outbreak during 2014 in the Tribal Areas of Odisha, India.

The large outbreak of cholera reported during July to September 2014 in the Narla block of Kalahandi district, India, was investigated to determine the causative organism. Rectal swabs collected from patients with diarrhea and environmental water samples were cultured following standard techniques. The causative organism was identified as Vibrio cholerae O1 Ogawa biotype El Tor, and analysis by double mismatch mutation assay PCR confirmed that all strains were the ctxB7 variant of Haitian V.