First Human Case of cattle-borne Shamonda virus reported in France
French health authorities confirmed that a severely immunocompromised man in Lyon died after contracting the Shamonda virus, a pathogen that normally infects cattle and is spread by midges.
Health officials in France have documented the first known human infection with the Shamonda virus, a pathogen that primarily affects cattle and is transmitted by biting midges. The case involved a man living in Lyon who was severely immunocompromised; he exhibited neurological signs after a presumed midge bite and later died, with investigators still determining the virus's contribution to his death. Although the virus has circulated in Africa and Japan since the 1960s and was only recently identified in Europe, European authorities are monitoring for additional cases.
The World Health Organization has indicated that widespread human transmission is improbable. The incident highlights the zoonotic potential of livestock viruses, even when human-to-human spread appears limited.
Why it matters
It shows that animal viruses can cross to humans, underscoring the need for surveillance of zoonotic threats.
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