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Predictions for future human influenza pandemics

R G Webster1

  • 1Department of Virology/Molecular Biology, St. Jude Children's Research Hospital, Memphis, Tennessee 38101, USA.

The Journal of Infectious Diseases
|August 1, 1997
PubMed
Summary

Another human influenza pandemic is certain. Avian influenza viruses from Eurasia will likely reassort in pigs, potentially in southern China, leading to a new human pandemic.

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Area of Science:

  • Virology
  • Epidemiology
  • Public Health

Background:

  • Influenza pandemics pose a significant global health threat.
  • Understanding the origins and mechanisms of novel influenza strains is crucial for pandemic preparedness.

Purpose of the Study:

  • To discuss the inevitability of future human influenza pandemics.
  • To identify potential origins and transmission pathways of pandemic influenza strains.

Main Methods:

  • Review of existing hypotheses on influenza virus evolution and emergence.
  • Analysis of viral reservoirs, reassortment mechanisms, and host factors.

Main Results:

  • Future pandemics are certain, with high probability of avian origin.
  • Pigs are likely intermediate hosts due to dual receptor compatibility.
  • Southern China is a probable emergence region.

Conclusions:

  • Pandemic influenza emergence is a predictable event.
  • Avian influenza viruses pose a continuous threat through reassortment.
  • Continued surveillance and research are vital for pandemic prevention.

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