For decades, Shamonda virus was a problem for farmers and vets only. It made cows sick, cut milk yields and caused birth defects in calves and lambs. No person had ever been known to catch it. That changed this week.
French authorities announced on October 22, 2026, that a man in the Lyon area is the first known human infected with Shamonda virus (SHAV). He was already seriously ill and in hospital for an unrelated condition, and he died in early October. Investigators have not yet said whether the virus caused or contributed to his death. French officials say no risk to the general population has been identified so far.
Quick Facts
- Who: A man in his 60s from the Lyon area, who was being treated for a serious illness that weakened his immune system
- What: The first known human infection with Shamonda virus, a livestock virus spread by biting midges
- When: He died in early October; the case was announced on October 22, 2026
- Where: France (infection suspected in eastern France)
- Key number: 13 European countries and territories have reported the virus in farm animals, according to the ECDC
What Happened in the Shamonda Virus Human Case
The patient was in hospital in Lyon for a serious illness unrelated to the virus, according to French officials quoted by several outlets. That illness left him more open to infections and complications.
Tests later found Shamonda virus in his body. Authorities have not said exactly how the infection was picked up. Their main theory is that he was bitten by an infected midge in eastern France, where the virus had been spreading among animals during the spring and summer.
The European Centre for Disease Prevention and Control (ECDC) said it is “carefully monitoring the situation” and is working with French authorities, the European Commission and the European Food Safety Authority. It is also helping EU countries expand testing and look for any other possible cases.
What Is Shamonda Virus and How Does It Spread?
Shamonda virus was first identified in Nigeria in the mid-1960s. It is an orthobunyavirus and a close relative of Schmallenberg virus, another midge-borne livestock virus well known to European farmers.
It does not pass directly from one animal to another. It travels through bites from tiny Culicoides midges, insects smaller than a mosquito that often swarm around farms on warm evenings.
In cattle, sheep and goats, the infection can cause fever, diarrhoea, loss of appetite and lower milk yield. The bigger worry for farmers is pregnancy: Austria’s food safety agency says it can trigger abortions and birth defects in calves, lambs and kids. In Switzerland and Germany, the virus’s genetic material was found in the brains of horses that died with neurological symptoms.
Shamonda in Europe: A Fast Spread in 2026
The ECDC says farm animals in Europe first showed signs of the illness in June 2026, and the virus was confirmed in late July. Since then it has been found in livestock in Austria, Belgium, France, Germany, Ireland, Italy, Liechtenstein, Luxembourg, the Netherlands, Portugal, Spain, Switzerland and Jersey.
In France, French farm media report that the virus had already turned up in dozens of departments, with its first sheep-farm outbreak in the Oise region confirmed in September. The ECDC notes there is currently no commercially available vaccine.
How Worried Should People Be?
Based on what experts are saying so far, not very. The French government said no health risk to the general population has been identified to date.
Scientists quoted by The Guardian and The Irish Times made three points:
- The virus has circulated in animals for years with no recognised human case, so the risk to the public looks very low (Prof Tom Solomon, University of Liverpool).
- The patient was severely immunocompromised, and there is no sign of widespread human disease (Dr Ben Brennan, MRC-University of Glasgow).
- Person-to-person spread is likely to be very rare, although, as Prof Paul Hunter of the University of East Anglia put it, “tiny is not zero.”
The season also helps. The ECDC says midges are most active from spring to autumn, and their activity in Europe is falling as the weather cools.
What We Don’t Know Yet
- Whether Shamonda virus played any part in the man’s death
- Which midge species carried the infection, which the ECDC says is still unknown
- Whether there have been other mild or unnoticed human infections; health agencies are now looking
- Whether the strain in Europe differs in any important way from the one first found in Africa
What This Means for You
For most readers, including those in India, nothing changes day to day. The only known human case was in Europe, in a patient who was already very ill, and no health agency has issued travel restrictions.
Ordinary sense around insect bites still applies, especially if you live or work near livestock or are travelling through rural Europe in warm months:
- Use insect repellent and cover your arms and legs around dusk, when midges are most active.
- People with weakened immune systems should be extra careful about insect bites.
- If you develop an unexplained fever after insect bites or time on farms, consult a doctor and mention where you have been.
This article is for general information and is not medical advice.
Our Take
This looks like a rare event in a very vulnerable patient, not the start of an outbreak, and officials have been careful not to overstate it. Still, it is a reminder that animal viruses can surprise us, and that animal-health and human-health surveillance work best when they share information quickly. The ECDC’s work on testing and case-finding is the right response.
FAQs
What is Shamonda virus?
It is a livestock virus spread by biting midges. It mainly affects cattle, sheep and goats and can cause birth defects in their young. It was first found in Nigeria in the 1960s.
Has anyone died from Shamonda virus?
The only known human case, a man in France, died in early October. Investigators have not yet determined whether the virus caused or contributed to his death.
Can Shamonda virus spread from person to person?
There is no evidence of that. Experts say person-to-person spread, if it can happen at all, is likely to be very rare.
Is there a vaccine for Shamonda virus?
According to the ECDC, no commercially available vaccine exists at present.
Has Shamonda virus been found in India?
Current reporting does not mention any detection in India. The 2026 animal outbreak and the single human case are in Europe.
You can read the ECDC’s official update here, and background on the virus from Austria’s AGES agency here.
Based on reporting by the ECDC, The Irish Times (Guardian/Reuters), CNN and ABC News.
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