Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/27579
Title: Characterization of Vibrio cholerae isolated from the aquatic basins of the State of Pernambuco, Brazil
Authors: Leal, Nilma Cintra
Figueiroa, Angela Cristina Torres de Araújo
Cavalcanti, Valdelúcia Oliveira
Silva, Soraya Cavalcante da
Balbino, Tereza Cristina Leal
Almeida, Alzira Maria Paiva de
Hofer, Ernesto
Affilliation: Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Recife, PE, Brasil.
Secretaria de Saúde do Estado do Pernambuco. Laboratório Central Milton Sobral. Recife, PE, Brasil.
Secretaria de Saúde do Estado do Pernambuco. Laboratório Central Milton Sobral. Recife, PE, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Recife, PE, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Recife, PE, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Recife, PE, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ. Brasil.
Abstract: Through a continuous bacteriological monitoring programme carried out by the Health Secretariat of the State of Pernambuco, Brazil, two isolates of Vibrio cholerae O1 El Tor Ogawa were discovered in an endemic area in 2001, during a cholera inactive period, along with six V. cholerae non-O1/non-O139 strains and two Aeromonas veronii biovar sobria strains showing an unusual characteristic of agglutination with O1 antiserum. Between that time and 2005, eight other O1 isolates were found. The virulence genes present in the V. cholerae differed among strains, with only three O1 strains harboring the ctxA gene. The O1 and some non-O1/non-O139 strains displayed identical patterns of amplification of the 16S-23S intergenic spacer region. RAPD of the 10 V. cholerae O1 strains, with the two primers used, revealed heterogeneity. The presence of V. cholerae carrying virulence genes in the aquatic basins examined confirms that they constitute a vibrio reservoir during a cholera inactive period, thus strengthening the argument for a continuous monitoring programme and preventative measures for cholera, mainly in the areas where the supply of drinking water is deficient.
Keywords: Vibrio cholerae O1
Vibrio cholerae non-O1
Environment
Virulence factors
genotypes
Brazil
keywords: Vibrio cholerae
Fatores de virulência
Meio Ambiente
Genótipos
Brasil
Issue Date: 2008
Publisher: Elsevier
Citation: LEAL, Nilma Cintra; et al. Characterization of Vibrio cholerae isolated from the aquatic basins of the State of Pernambuco, Brazil. Transactions of the Royal Society of Tropical Medicine and Hygiene, v.102, p.272—276, 2008.
DOI: 10.1016/j.trstmh.2007.12.008
ISSN: 0035-9203
Copyright: restricted access
Appears in Collections:IOC - Artigos de Periódicos

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