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[Toxigenic Vibrio cholerae non-01].

L Bravo1, M Ramírez, J L Maestre

  • 1Instituto de Medicina Tropical Pedro Kourí, Marianao, Ciudad de la Habana, Cuba. ipk@ciipk.sld.cu

Revista Cubana De Medicina Tropical
|December 7, 2000
PubMed
Summary

A study found 20% of non-01 Vibrio cholerae strains in Cuba are toxigenic, a high rate suggesting potential epidemic risk. These strains could be candidates for cholera vaccines.

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Area of Science:

  • Microbiology
  • Epidemiology
  • Infectious Diseases

Background:

  • Non-01 Vibrio cholerae strains are increasingly recognized for their public health relevance.
  • Understanding the characteristics of these strains is crucial for disease surveillance and control.

Purpose of the Study:

  • To determine the antimicrobial susceptibility and prevalence of heat-stable toxin in non-01 Vibrio cholerae strains in Cuba.
  • To assess the potential epidemic risk and vaccine candidacy of these identified strains.

Main Methods:

  • Analysis of 100 non-01 Vibrio cholerae isolates from various health centers.
  • Antimicrobial susceptibility testing and detection of heat-stable toxin production.

Main Results:

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  • 20% of the non-01 Vibrio cholerae strains were found to be toxigenic.
  • This prevalence is higher than in many other regions, indicating a significant public health concern.
  • The presence of toxigenic strains raises concerns about potential epidemic spread, especially if infected by CTX phages.

    • Conclusions:

    • The high prevalence of toxigenic non-01 Vibrio cholerae in Cuba warrants epidemiological alert.
    • These strains possess epidemic potential similar to the primary agent of cholera.
    • Identified strains represent potential candidates for future cholera vaccine development.