The dangerous Usutu virus, which originated in Africa, has been detected in Scotland for the first time
In April 2026, British health and veterinary authorities confirmed the first-ever case of the African Usutu virus in blackbirds on the Scottish island of Arran. The appearance of the pathogen so far north came as a surprise to scientists, who had previously considered the local climate too cool for it to spread.
Local residents first noticed a mass die-off of birds exhibiting symptoms of disorientation and neck twisting as early as the summer of 2025, after which veterinarians sent samples for laboratory analysis.
Scientists cite global warming as the main factor driving the spread of the infection, as it creates favorable temperature conditions for the virus to replicate within its primary vectors—Culex pipiens mosquitoes. Currently, Usutu is not considered a serious threat to humans in the United Kingdom; however, it poses a significant danger to wild bird populations, and its emergence is an alarming sign of a rapid shift in the geography of dangerous infections in Europe.
This is reported by Phys.
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