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Emerging and re-emerging infectious diseases.

Heinz Feldmann, Markus Czub, Steven Jones

    Medical Microbiology and Immunology
    |November 1, 2002
    PubMed
    Summary
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    Emerging infectious diseases, often zoonotic, pose significant public health threats due to novel agents and limited resources. Preparedness for both known and unknown threats is crucial for global health security.

    Area of Science:

    • Public Health
    • Infectious Diseases
    • Zoonosis

    Background:

    • Infectious diseases continuously emerge and re-emerge throughout human history.
    • Zoonotic 'exotic' agents present unique challenges to public health systems due to limited management experience and resources.
    • Disease distribution is intrinsically linked to the population dynamics and geographic range of reservoir hosts.

    Purpose of the Study:

    • To discuss the emergence and re-emergence of specific infectious diseases.
    • To highlight the role of zoonotic origins and reservoir hosts in disease spread.
    • To address the emerging threat of bioterrorism in the context of infectious diseases.

    Main Methods:

    • Review of historical and current infectious disease emergence patterns.

    Related Experiment Videos

  • Case examples including filoviruses, hantaviruses, paramyxoviruses, flaviviruses, and Yersinia pestis.
  • Consideration of zoonotic transmission pathways and reservoir host dynamics.
  • Main Results:

    • Zoonotic agents are a significant source of emerging and re-emerging infectious diseases.
    • Subclinical or asymptomatic infections in reservoirs complicate disease surveillance and control.
    • Bioterrorism is an emerging factor in the landscape of infectious disease threats.

    Conclusions:

    • Effective preparedness strategies are essential for public health systems to manage known and unknown infectious disease threats.
    • Understanding zoonotic reservoirs and transmission is key to preventing future outbreaks.
    • Proactive measures against emerging infectious diseases, including bioterrorism, are a priority for global health security.