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Genomic attributes of *Vibrio cholerae* O1 responsible for 2022 massive cholera outbreak in Bangladesh

Medicine and Health

Genomic attributes of *Vibrio cholerae* O1 responsible for 2022 massive cholera outbreak in Bangladesh

M. M. Monir, M. T. Islam, et al.

This study delves into the genomic characteristics of Vibrio cholerae O1 strains that fueled the extensive 2022 cholera outbreak in Dhaka, Bangladesh, revealing their unique links to earlier strains from India. The research was conducted by Md Mamun Monir, Mohammad Tarequl Islam, Razib Mazumder, and others.

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Playback language: English
Abstract
This study investigates the genomic attributes of *Vibrio cholerae* O1 strains responsible for the massive 2022 cholera outbreak in Dhaka, Bangladesh. The authors sequenced 21 isolates from the outbreak and compared them to 960 other 7th pandemic El Tor (7PET) strains. Results indicate that the outbreak strains cluster with global wave-3 7PET strains but possess distinct attributes linking them to the 2021 emergence of an El Tor biotype in India. The shift in lineage and genetic attributes, including serotype switching, is suggested as a contributing factor to the increased cholera cases.
Publisher
Nature Communications
Published On
Mar 01, 2023
Authors
Md Mamun Monir, Mohammad Tarequl Islam, Razib Mazumder, Dinesh Mondal, Kazi Sumaita Nahar, Marzia Sultana, Masamoto Morita, Makoto Ohnishi, Anwar Huq, Haruo Watanabe, Firdausi Qadri, Mustafizur Rahman, Nicholas Thomson, Kimberley Seed, Rita R. Colwell, Tahmeed Ahmed, Munirul Alam
Tags
Vibrio cholerae
cholera outbreak
genomic attributes
El Tor strains
serotype switching
Bangladesh
India

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