scholarly journals Corrigendum to: Phylogenetic Analysis Revealed the Dissemination of Closely Related Epidemic Vibrio cholerae O1 Isolates in Laos, Thailand, and Vietnam

2021 ◽  
Vol 8 (12) ◽  
Author(s):  
Masatomo Morita ◽  
Kazuhisa Okada ◽  
Tetsu Yamashiro ◽  
Tsuyoshi Sekizuka ◽  
Amonrattana Roobthaisong ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Vibrio Cholerae ◽  
Vibrio Cholerae O1

scholarly journals Phylogenetic analysis revealed the dissemination of closely related epidemic Vibrio cholerae O1 isolates in Laos, Thailand, and Vietnam

2020 ◽  
Author(s):  
Masatomo Morita ◽  
Kazuhisa Okada ◽  
Tetsu Yamashiro ◽  
Tsuyoshi Sekizuka ◽  
Amonrattana Roobthaisong ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Southeast Asia ◽  
Whole Genome Sequencing ◽  
Vibrio Cholerae ◽  
Genome Sequencing ◽  
Core Genome ◽  
Whole Genome ◽  
Genetic Lineages ◽  
Regional Clusters ◽  
Vibrio Cholerae O1

Abstract We performed whole-genome sequencing of Vibrio cholerae O1 isolates from Laos, Thailand, and Vietnam, where cholera outbreaks occurred, to determine their genetic lineages. Core genome phylogenetic analysis revealed that the isolates located in same lineage without regional clusters, which suggests that closely related strains circulated in Southeast Asia.

scholarly journals Regional sequencing collaboration reveals persistence of the T12 Vibrio cholerae O1 lineage in West Africa

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Eme Ekeng ◽  
Serges Tchatchouang ◽  
Blaise Akenji ◽  
Bassira Boubacar Issaka ◽  
Ifeoluwa Akintayo ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
West Africa ◽  
Vibrio Cholerae ◽  
Local Dynamics ◽  
Vibrio Cholerae O1 ◽  
Gates Foundation ◽  
The Relationship

Background:Despite recent insights into cholera transmission patterns in Africa, regional and local dynamics in West Africa—where cholera outbreaks occur every few years—are still poorly understood. Coordinated genomic surveillance of Vibrio cholerae in the areas most affected may reveal transmission patterns important for cholera control.Methods:During a regional sequencing workshop in Nigeria, we sequenced 46 recent V. cholerae isolates from Cameroon, Niger, and Nigeria (37 from 2018 to 2019) to better understand the relationship between the V. cholerae bacterium circulating in these three countries.Results:From these isolates, we generated 44 whole Vibrio cholerae O1 sequences and analyzed them in the context of 1280 published V. cholerae O1 genomes. All sequences belonged to the T12 V. cholerae seventh pandemic lineage.Conclusions:Phylogenetic analysis of newly generated and previously published V. cholerae genomes suggested that the T12 lineage has been continuously transmitted within West Africa since it was first observed in the region in 2009, despite lack of reported cholera in the intervening years. The results from this regional sequencing effort provide a model for future regionally coordinated surveillance efforts.Funding:Funding for this project was provided by Bill and Melinda Gates Foundation OPP1195157.

In vivo Production of Soluble Inorganic Pyrophosphatases in Two Strains of Vibrio cholerae

1970 ◽  
Vol 24 (1) ◽  
pp. 38-41
Author(s):  
Taslima Taher Lina ◽  
Mohammad Ilias
Keyword(s):  
Vibrio Cholerae ◽  
Specific Activity ◽  
Experimental Conditions ◽  
Environmental Strain ◽  
Cell Extracts ◽  
Atcc Strain ◽  
The Family ◽  
Effects Of Ph ◽  
Vibrio Cholerae O1

The in vivo production of soluble inorganic pyrophosphatases (PPases) was investigated in two strains, namely, Vibrio cholerae EM 004 (environmental strain) and Vibrio cholerae O1 757 (ATCC strain). V. cholerae is known to contain both family I and family II PPase coding sequences. The production of family I and family II PPases were determined by measuring the enzyme activity in cell extracts. The effects of pH, temperature, salinity of the growth medium on the production of soluble PPases were studied. In case of family I PPase, V. cholerae EM 004 gave the highest specific activity at pH 9.0, with 2% NaCl + 0.011% NaF and at 37°C. The strain V. cholerae O1 757 gave the highest specific activity at pH 9.0, with media containing 0% NaCl and at 37°C. On the other hand, under all the conditions family II PPase did not give any significant specific activity, suggesting that the family II PPase was not produced in vivo in either strains of V. cholerae under different experimental conditions. Keywords: Vibrio cholerae, Pyrophosphatases (PPases), Specific activityDOI: http://dx.doi.org/10.3329/bjm.v24i1.1235 Bangladesh J Microbiol, Volume 24, Number 1, June 2007, pp 38-41

Вариабельность генома островов патогенности нетоксигенных штаммов Vibrio cholerae O1 биовара Эль Тор

2020 ◽  
Vol 56 (9) ◽  
pp. 1018-1033
Author(s):  
Н. И. Смирнова ◽  
А. А. Крицкий ◽  
Ж. В. Альхова ◽  
Е. Ю. Агафонова ◽  
Е. Ю. Щелканова ◽  
...  
Keyword(s):  
Vibrio Cholerae ◽  
Vibrio Cholerae O1

Genomic Variability of Pathogenicity Islands in Nontoxigenic Strains of Vibrio cholerae O1 Biotype El Tor

2020 ◽  
Vol 56 (9) ◽  
pp. 1055-1069
Author(s):  
N. I. Smirnova ◽  
A. A. Kritsky ◽  
J. V. Alkhova ◽  
E. Yu. Agafonova ◽  
E. Yu. Shchelkanova ◽  
...  
Keyword(s):  
Vibrio Cholerae ◽  
Pathogenicity Islands ◽  
Genomic Variability ◽  
Vibrio Cholerae O1 ◽  
El Tor

Vibrio cholerae O1 El Tor variant and emergence of Haitian ctxB variant in the strains isolated from South India

2015 ◽  
Vol 205 (2) ◽  
pp. 195-200 ◽  
Author(s):  
Debdutta Bhattacharya ◽  
Shuchismita Dey ◽  
Gururaja Perumal Pazhani ◽  
Thandavarayan Ramamurthy ◽  
Mahantesh V. Parande ◽  
...  
Keyword(s):  
Vibrio Cholerae ◽  
South India ◽  
Vibrio Cholerae O1 ◽  
El Tor

scholarly journals Isolation of Vibrio cholerae O1 strains similar to pre-seventh pandemic El Tor strains during an outbreak of gastrointestinal disease in an island resort in Fiji

2006 ◽  
Vol 55 (11) ◽  
pp. 1559-1562 ◽  
Author(s):  
G. Balakrish Nair ◽  
Ashrafus Safa ◽  
N. A. Bhuiyan ◽  
Suraia Nusrin ◽  
Denise Murphy ◽  
...  
Keyword(s):  
Vibrio Cholerae ◽  
Gastrointestinal Disease ◽  
Vibrio Cholerae O1 ◽  
El Tor

scholarly journals Vibrio cholerae O1 em amostras de ambientes aquáticos e de alimentos analisados no Estado de Pernambuco, Brasil

1998 ◽  
Vol 14 (3) ◽  
pp. 465-471 ◽  
Author(s):  
Waldêny Colaço ◽  
Sandoval Vieira da Silva Filho ◽  
Dália dos Prazeres Rodrigues ◽  
Ernesto Hofer
Keyword(s):  
Vibrio Cholerae ◽  
Vibrio Cholerae O1 ◽  
El Tor

No período de 1992 a 1994, foram analisadas 2.585 amostras de águas de diferentes ecossistemas, acrescidas de 91 espécimens de alimentos visando ao monitoramento de Vibrio cholerae O1 no Estado de Pernambuco. Nas 2.676 amostras foram detectadas 193 cepas de Vibrio cholerae O1 (7,21%) com predominância do sorovar Inaba (183-94,8%) sobre Ogawa (10-5,1%), todas classificadas no biotipo El Tor e sensíveis à tetraciclina. Numa parcela de setenta amostras selecionadas ao acaso, mas incluindo todas do sorovar Ogawa, foi evidenciada a produção de toxina colérica. A maior incidência do vibrião colérico em águas de rios, canais e de esgoto, representando 86% dos isolados, indicou a contaminação fecal por excretores como a causa preponderante na disseminação da bactéria nos sistemas aquáticos. Assinala-se a discreta ocorrrência de V. cholerae O1 nos alimentos processados (2,1%).

Evaluation of Different Antibiotics in Inhibiting Colonization of Vibrio cholerae O1 and O139 in the Rabbit Intestine

Chemotherapy ◽  
1998 ◽  
Vol 44 (2) ◽  
pp. 108-111 ◽  
Author(s):  
M.K. Chakrabarti ◽  
M.K. Bhattacharya ◽  
J. Bhattacharya ◽  
S.K. Bhattacharya ◽  
D. Mahalanabis
Keyword(s):  
Vibrio Cholerae ◽  
Rabbit Intestine ◽  
Vibrio Cholerae O1
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