Press "Enter" to skip to content

France Confirms First Human Death Linked to Livestock Shamonda Virus

French health authorities announced Thursday that a man in his 60s became the first recorded human case of the Shamonda virus, a pathogen normally confined to livestock. The patient, who was already hospitalized in Lyon for an unrelated serious illness, died after the virus was identified. Officials emphasized that the incident is isolated and does not pose a risk to the general public.

Patient case and public health response

According to a spokesperson from the French health ministry, the man lived in the Lyon area and was admitted to a local hospital for a condition unrelated to the virus. The infection is believed to have been acquired after a bite from an infected biting midge in eastern France, where the virus has circulated among animals during the spring and summer months.

The World Health Organization confirmed it is in contact with French officials about the case. WHO officials in Geneva described the situation as “an isolated human case” and said it is unlikely to lead to wider transmission. Grégory Emery, head of France’s health directorate, described the case as “unprecedented from a scientific and virological point of view” and linked it to the patient’s severely weakened immune system. He added that, from a medical and public‑health perspective, there is no alert or crisis.

Shamonda virus in animals

Shamonda is a midge‑borne virus that primarily affects cattle but has also been detected in horses, alpacas, sheep and goats, according to the World Organisation for Animal Health. The virus does not currently fall under the European Union’s Animal Health Law, meaning it is not subject to mandatory surveillance or control measures. In animals, infection can cause diarrhea, weakness, loss of appetite and, less frequently, fever. A recent study of nine French dairy farms reported a drop in milk production of up to 75% among infected herds.

European spread and surveillance

The virus was first identified in Nigeria in the mid‑1960s. It entered European awareness in late July after genomic testing of sick cattle in southern Germany, Switzerland and eastern France confirmed its presence. France’s weekly animal health surveillance bulletin later listed detections in Austria, Belgium, Ireland, Italy, Liechtenstein, Luxembourg, the Netherlands, Portugal, Slovenia, Spain and the British Crown dependency of Jersey.

Despite the broad geographic spread among livestock, there have been no reported cases of cattle‑to‑human or human‑to‑human transmission prior to the French incident. French officials reiterated that the current situation does not warrant a public‑health alert, and the WHO echoed that the risk of further spread remains low.

Health authorities continue to monitor the situation closely, especially given the virus’s capacity to affect animal productivity. Ongoing surveillance of livestock will aim to track the prevalence of Shamonda across Europe, while public‑health agencies remain prepared to respond should additional human cases emerge.