Overview

• H5N1 avian influenza has been detected in various bird species and marine mammals in Antarctica.
• The virus likely spread from South America via migratory birds, impacting regions previously untouched by such outbreaks.
• Over 280 million birds have died globally since 2021, with significant losses among endangered species.
• Experts warn of potential risks to human health and emphasize the need for ongoing monitoring and research.
• The virus's presence in Antarctica underscores the vulnerability of remote ecosystems to infectious diseases.