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[Update on plague in Madagascar]

S Chanteau1, L Rahalison, J M Duplantier

  • 1Institut Pasteur de Madagascar. chanteau@pasteur.mg

Medecine Tropicale : Revue Du Corps De Sante Colonial
|November 13, 1998
PubMed
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Bubonic plague is resurging in Madagascar, with new Yersinia pestis strains and antibiotic resistance emerging. Enhanced diagnostics aid surveillance of this ongoing global health concern.

Area of Science:

  • Epidemiology
  • Microbiology
  • Public Health

Background:

  • Bubonic plague, controlled for 30 years, resurged in Madagascar starting in 1978.
  • Case numbers increased significantly by 1997, necessitating updated control and surveillance.
  • Improved diagnostics and reporting enhance understanding of the current plague situation.

Purpose of the Study:

  • To investigate the recrudescence of bubonic plague in Madagascar.
  • To evaluate new diagnostic tools for disease surveillance.
  • To analyze the genetic diversity and antibiotic resistance of Yersinia pestis strains.

Main Methods:

  • Development and application of immunological diagnostic tools (antibody and F1 antigen detection).
  • Investigation of potential vectors (fleas) and reservoirs (Rattus norvegicus, Suncus murinus).

Related Experiment Videos

  • Genetic analysis of Yersinia pestis strains collected over several decades.

    • Main Results:

    • Detection of 3 new Yersinia pestis ribotypes since 1982 in high-activity zones.
    • Isolation of a multiresistant Yersinia pestis strain in 1995.
    • Enhanced surveillance capabilities due to new diagnostic techniques.

    Conclusions:

    • Bubonic plague remains a significant health priority in Madagascar.
    • Emerging Yersinia pestis strains and antibiotic resistance pose challenges.
    • Continued research into the epidemiological cycle is crucial for global control efforts.