French health authorities have reported the first confirmed case of the Shamonda virus infecting a human, marking an unprecedented event with the virus traditionally affecting livestock. The patient, a severely immunocompromised individual hospitalised for a serious medical condition, died earlier this month in eastern France. Authorities stated there is currently no identified health risk to the general public.
The Shamonda virus is part of the Orthobunyavirus group and is normally transmitted among animals through small biting insects such as midges. Historically, the virus has been detected in cattle in parts of Africa and Asia since its initial identification in Nigeria in the mid-1960s. Until this recent case, human infections had not been documented.
The infection is considered an exceptional case tied to the patient’s compromised immune system. Preliminary investigations suggest the patient contracted the virus through the bite of a midge in a region of France where the virus has been circulating among animals during recent months. Neurological complications observed in the patient prior to death are believed to be linked to the Shamonda virus, according to early findings cited by French health and agriculture ministries.
The virus was detected for the first time in Europe this past summer and has since been found in cattle across 14 western European countries. In livestock, particularly cattle, the virus causes symptoms including acute diarrhea, fever, lethargy, and reduced milk production. Sporadic infections in smaller livestock and horses have also been reported in France over the summer.
French authorities emphasized that clinical, biological, and epidemiological investigations are ongoing to better understand the virus’s behaviour, transmission potential, and overall impact on public health. National research institutes and international bodies, including the World Health Organization and the European Centre for Disease Prevention and Control, have been notified and are monitoring the situation.
At this stage, health officials have reiterated that no immediate health threat exists for the general population, highlighting that this case appears isolated and linked to the patient’s unique medical vulnerabilities. Surveillance efforts continue to assess any potential risks posed by the virus to both animal and human health in Europe.