WHO warns that climate change influences the spread of bird flu

Geneva – The H5N1 virus bird fluwith a high mortality rate in humans although with a contagion rate limited for now, is rapidly expanding to continents such as the American continent due to factors such as climate changehighlighted this Wednesday an expert from the World Health Organization (WHO).

“Climate change has impacted the routes of migratory birds, and this has played a role in the unprecedented spread of H5N1 in animals,” the head of the WHO's global influenza prevention program, Zhang Wenqing, stressed at a press conference.

The expert stressed that the variant of the virus “emerged in 2020, crossed the Atlantic in 2021 to North America and in 2022 reached South America”, with various outbreaks observed in recent years not only in birds, but also in mammals.

The recent detection of outbreaks of avian flu in cattle and goats in USAwhich has caused the first cow-to-man infection ever recorded on a farm, has increased the concern of the medical community about the possible mutations of this virus, which according to the WHO has epidemic and pandemic potential.