Past Examples of Probable Limited, Non-Sustained, Person-to-Person Spread of Avian Influenza A Viruses

• 2023

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About

This webpage describes how avian influenza A viruses, which mainly infect birds, can sometimes spread to humans. Human infections usually happen after close contact with infected birds. There have been cases in different countries where the virus spread from person to person but did not continue spreading widely. These cases occurred in places like Hong Kong, the Netherlands, Thailand, Indonesia, China, and Pakistan between 1997 and 2013. It highlights that such human-to-human transmission is rare and often involves family members or healthcare settings with prolonged exposure without protection.

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Tags

Focus Area: Infectious Disease

Audience: Public Health Professionals

Emergency Management Stage: Preparedness (Prevention / Protection)

Keywords: Antibodies, Viral; Cross Infection; Disease Outbreaks; Epidemiology; Influenza in Birds; Influenza, Human; Respiratory Tract Infections; Zoonoses; Disease Transmission, Infectious; Influenza A Virus, H5N1 Subtype; Pandemics

Institutions: Centers for Disease Control and Prevention (CDC)

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The information provided on this website is for educational purposes only. It does not substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

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