French authorities have confirmed that the first known human case of the Shamonda virus has been detected in a patient who died in early October. Health officials said it was an "exceptional case in a severely immunocompromised patient" and there was currently no risk to the public.
According to multiple reports, citing French health and agriculture ministry officials, the patient contracted the virus through a midge bite in eastern France, the same area where it was first discovered in animals in the spring. Based on preliminary findings, officials stated that the patient was being treated for a serious illness in a Lyon hospital and experienced neurological complications thought to have been "very likely linked" to the virus.
The Shamonda virus is an insect-borne pathogen discovered in animals. Culicoides biting midges are believed to be the main vectors, and the disease primarily affects cattle.
First identified in Nigeria in the mid-1960s, it has since been detected sporadically in animals in Africa and Japan. Many European countries have reported a surge in the virus this year.
According to the Animal and Plant Health Agency, the virus was detected in cattle in Jersey in August, with clinical symptoms matching those seen elsewhere in Europe. Meanwhile, the European Centre for Disease Prevention and Control (ECDC) stated it was evaluating the situation as officials continue to investigate how the virus infected a human.
Experts are currently conducting genomic sequencing to understand if the virus has mutated to facilitate human transmission. While the risk to the general population remains low, health authorities in France have increased surveillance in the eastern regions.
Farmers have been advised to implement stricter biosecurity measures to protect livestock from midge bites. The medical community is closely monitoring the situation, as this marks a significant shift in the virus's host range.
Further studies are expected to be published in the coming weeks to provide more clarity on the transmission dynamics. The World Health Organization (WHO) has been briefed on the incident.
Officials emphasize that this is an isolated event, and there is no evidence of human-to-human transmission at this stage. Public health departments are coordinating with veterinary services to ensure that any further outbreaks in animal populations are contained rapidly.
The focus remains on vector control and public awareness. As investigations continue, the French government has pledged to provide transparent updates to the public to prevent misinformation regarding the nature of the Shamonda virus.