Health officials in France have reported the first documented human infection with Shamonda virus, a pathogen that has historically affected livestock and other animals. The patient, who was severely immunocompromised, died in early October and experienced neurological complications believed to be linked to the infection. Authorities determined that the individual likely contracted the virus through a midge bite in eastern France, where animal cases were initially identified in the spring.
Shamonda virus is primarily a disease of cattle that spreads through infected midges, though it has also been identified in sheep, goats, alpacas, and horses. Prior to this case, human infections had never been documented despite the virus circulating in Africa and Asia for decades. French health and agriculture officials emphasized that the patient’s weakened immune system made them particularly susceptible to severe illness from the virus.
International health organizations have begun monitoring the situation. The World Health Organization confirmed this as the first known human case and stated that current information suggests the infection is isolated and unlikely to generate broader transmission. The organization noted that midge-borne viruses typically show reduced transmissibility during cooler months. The European Centre for Disease Prevention and Control is investigating potential public health implications alongside French and European partners.
Animal cases of Shamonda virus appeared in Europe starting in late July, with subsequent detections reported in farm animals across Ireland, Germany, Italy, Spain, and Jersey. In cattle, the virus causes fever, diarrhea, and reduced milk production. Health authorities have stressed there is currently no public health risk to the general population based on available evidence.
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