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Avian influenza H5N1: risks at the human-animal interface
Elizabeth Mumford1, Jennifer Bishop, Saskia Hendrickx
1World Health Organization Global Influenza Programme, Geneva, Switzerland.
Food and Nutrition Bulletin
|July 31, 2007
Summary
Highly pathogenic avian influenza (HPAI) poses a pandemic risk. Reducing human exposure to HPAI at the human-animal interface through collaboration between public and animal health sectors is crucial for prevention.
Area of Science:
- Public Health
- Veterinary Medicine
- Epidemiology
Background:
- Highly pathogenic avian influenza (HPAI) H5N1 subtype infections in humans are a significant public health concern.
- Ongoing human exposure to HPAI increases the risk of a pandemic strain emerging with high human-to-human transmissibility.
- The high mortality rate observed in H5N1 human cases heightens concerns about potential pandemic strains.
Purpose of the Study:
- To categorize the three types of influenza affecting humans.
- To examine exposure risks at the human-animal interface.
- To propose strategies for reducing exposure and preventing pandemic influenza virus development.
Main Methods:
- This review synthesizes information from World Health Organization data and guidelines.
- Scientific literature and official governmental reports were critically analyzed.
- Epidemiological data and risk assessments were evaluated.
Main Results:
- Human exposure risk data for HPAI are often incomplete.
- Transmission occurs through direct contact with infected birds or contaminated environments.
- Properly cooked poultry and eggs are considered safe; antivirals and vaccination offer protection.
Conclusions:
- Effective pandemic prevention requires collaboration between public health and animal health sectors.
- Decreasing human exposure to HPAI is essential, involving control of avian virus circulation.
- Risk-based mitigation measures at the human-animal interface are necessary, covering all stages from production to consumption.
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