Molecular characterization and antimicrobial resistance of Vibrio cholerae in Perú, 1991 - 2019

Authors

  • Jimmy Ibarra-Trujillo Instituto Nacional de Salud, Centro Nacional de Salud Pública, Laboratorio de Referencia Nacional de Bacteriología clínica. Lima, Perú
  • Débora Alvarado Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, Laboratorio de Microbiología Acuática y Aplicaciones Tecnológicas. Lima, Perú
  • Ronnie Gavilán Instituto Nacional de Salud, Centro Nacional de Salud Pública, Laboratorio de Referencia Nacional de Bacteriología clínica. Lima, Perú

DOI:

https://doi.org/10.15381/anales.v85i2.28433

Keywords:

Vibrio cholerae, Microbial Sensitivity Testing, Integrases, Integrons, Microbial drug resistance

Abstract

Introduction. The integrons present in Vibrio cholerae are of interest in public health due to their relationship with multiresistance to antimicrobials. Objetive. Perform a molecular characterization, establish the presence of integrons and evaluate the antimicrobial resistance of Vibrio cholerae strains of clinical and environmental origin isolated in Peru during the years 1991 to 2019. Methods. 34 strains of Vibrio cholerae of clinical and environmental origin isolated during the years 1991 - 2019 were evaluated. All strains were reactivated, then grown in TCBS and in differential media for their taxonomic identification. An antibiogram was performed on all strains according to the disk diffusion method using 16 antimicrobials of clinical use. The genomic DNA was extracted, then the molecular characterization was carried out by PCR and subsequently the amplified products of the integrases were sequenced. Results. All strains evaluated showed 100% sensitivity (n=34) for FEP, CTX, CAZ, CIP and CN. The antimicrobials that exhibited the greatest resistance were AMPR [26.5% (n=9)] and FZR [23.5% (n=8)]. In the present study, 8 antibiotics were established. All strains presented the intl4 gene, except those of environmental origin. All type IV integrases had high homology. Conclusion. Vibrio cholerae presents an increase in antimicrobial resistance. Serogroup O1 had the presence of class IV integrase, as well as high homology.

Author Biographies

  • Jimmy Ibarra-Trujillo, Instituto Nacional de Salud, Centro Nacional de Salud Pública, Laboratorio de Referencia Nacional de Bacteriología clínica. Lima, Perú

    Biólogo.

  • Débora Alvarado, Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, Laboratorio de Microbiología Acuática y Aplicaciones Tecnológicas. Lima, Perú

    Biólogo, doctor en biología molecular.

  • Ronnie Gavilán, Instituto Nacional de Salud, Centro Nacional de Salud Pública, Laboratorio de Referencia Nacional de Bacteriología clínica. Lima, Perú

    Biólogo, doctor en biología molecular.

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Published

2024-06-30

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Section

Artículo Original

How to Cite

1.
Ibarra-Trujillo J, Alvarado D, Gavilán R. Molecular characterization and antimicrobial resistance of Vibrio cholerae in Perú, 1991 - 2019. An Fac med [Internet]. 2024 Jun. 30 [cited 2024 Jul. 17];85(2):146-55. Available from: https://revistasinvestigacion.unmsm.edu.pe/index.php/anales/article/view/28433