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Published on: July 8, 2011
[The plague]
1Laboratoire des Yersinia, Institut Pasteur, 28, rue du Docteur-Roux, 75724 Paris, France. carniel2@pasteur.fr
Abstract:
The plague has been one of the most devastating diseases of human history. Despite major advances in diagnosis, prevention, and treatment, it has not been possible to eradicate this infection. Plague is still active in Africa, in Asia and in the Americas, and is classified as a currently re-emerging disease. The plague is mainly a disease of rodents, which is transmitted by fleabites. Humans develop two main clinical forms: bubonic plague (following bites of infected fleas, lethal in 50-70% of the cases in less than a week if an appropriate treatment is not started rapidly), and pneumonic plague (after inhalation of infected droplets, lethal in less than three days in 100% of cases without immediate treatment). Y. pestis, the causative agent of plague, is usually sensitive to most antibiotics, but the first multi-resistant strain was recently described. No efficient and safe vaccines are currently available. The plague bacillus is one of the few organisms that could be used for biological warfare.
Insights
Plague remains a devastating and re-emerging infectious disease, primarily affecting rodents and transmitted by fleas. Despite advances, effective vaccines are unavailable, and antibiotic resistance is a growing concern.
Area of Science:
- Infectious Diseases
- Microbiology
- Public Health
Context:
- Plague is a historically devastating zoonotic disease caused by Yersinia pestis.
- It persists globally, particularly in Africa, Asia, and the Americas, posing a re-emerging threat.
- Rodents are the primary reservoir, with transmission to humans occurring mainly through flea bites.
Purpose:
- To summarize the current status and challenges of plague management.
- To highlight the clinical manifestations and transmission routes of plague.
- To underscore the need for improved prevention and treatment strategies.
Summary:
- Plague manifests primarily as bubonic (flea-transmitted) and pneumonic (droplet-transmitted) forms, both potentially lethal without prompt treatment.
- Yersinia pestis, the causative agent, is generally antibiotic-sensitive, but multi-resistant strains have emerged.
- Current challenges include the lack of effective vaccines and the emergence of antibiotic resistance.
Impact:
- Plague remains a significant public health concern due to its high fatality rates and potential for rapid spread.
- The emergence of multi-drug resistant strains necessitates urgent development of new therapeutic and prophylactic measures.
- Understanding plague's epidemiology and transmission is crucial for effective control and prevention strategies, especially given its potential use in biological warfare.
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