UKHSA risk assessment of MERS-CoV
Updated 18 May 2026
UKHSA risk assessment of MERS-CoVÌý
There have been 19 human cases of MERS reported between January 2025 and 29 April 2026 – 17 reported by the Kingdom of Saudi Arabia, and 2 reported by FranceÌýin December 2025, in individuals who had travelled to the Middle East.Ìý
Further information on the epidemiology of MERS-CoV is available in theÌýMERS-CoV: background information
Risk assessmentÌý
The number of reported human MERS-CoV cases per yearÌýglobally,Ìýhas fallen to the lowest level since 2014. The identification ofÌý2 imported cases ofÌýMERS-CoVÌýin France demonstrates that MERS continues to pose a risk to UK public health, particularly in those who have travelled to the Middle East.ÌýIn addition to PCR confirmed cases in the Middle East, there is serological evidence of MERS-CoV infection of camel-workers in Nigeria,ÌýKenyaÌýand Morocco. There is thereforeÌýa very lowÌýrisk of importation of MERS-CoV from occupationally exposed individuals from those African countries.ÌýIt is imperative that health professionalsÌýremainÌývigilant for clinical presentations compatible with Middle East respiratory syndrome.ÌýDetailed case definitions and guidanceÌýon when to suspect MERS is given in theÌýMERS-CoV: diagnosis and management of cases and contacts.
Early identificationÌýof MERS-CoV casesÌýis essential,ÌýachievedÌýÌýthroughÌýprompt testing, communication with local health protection teamsÌýand rapid implementation of infection control measures for persons who meet the possible case definition.
The riskÌýof infection with MERS-CoVÌýforÌýUK residentÌýshort-term travellers to countries where MERS-CoV is known to be endemic in camels isÌývery low. The riskÌýmay be higher for individualsÌýwith specific exposures includingÌýdirect contact with camels, or unpasteurised or undercooked camel products.ÌýÌýÌý
TheÌýrisk ofÌýimported casesÌýof MERS-CoVÌýinÌýnon-UKÌýresidents travelling to the UK isÌývery low.Ìý
TheÌýrisk of onward transmissionÌýof MERS-CoVÌýin the UK should importation occurÌýis low.ÌýInfection prevention control measures forÌýairborneÌýHCIDs are effective in preventing nosocomial transmission. Transmission between family members has occurred in theÌýUK butÌýwas limited by effective public health interventions.ÌýÌý
The risk ofÌýacquiringÌýMERS-CoV infection in the UK isÌýextremelyÌýlow. There is no evidence of infected camels in the UK, and very minimal importation of unpasteurised camel products.
Strict adherence to recommended infection control measures in healthcare facilities has been shown to be effective in preventing or limiting outbreaks of MERS-CoV.ÌýÌý
Travel adviceÌý
All travellers to the Middle East areÌýadvised to avoidÌýcontact with camels as much as possible. The , gives comprehensive travel advice in relation to MERS-CoV:
- travellers should practice good general hygiene measures, such as regular handwashing with soap and waterÌýat all times, but especially before and after visiting farms,ÌýbarnsÌýor market areasÌý
- travellers are advised toÌýavoid raw camel milk and/or camel products from the Middle EastÌý
- travellers are also advised toÌýavoid consumption of any type of raw milk, raw milk products and any food that may be contaminated with animal secretions unless peeled and cleaned and/or thoroughly cookedÌý
- travellers should follow the advice of local health authorities; there are currently no travel restrictions in placeÌý
- travellers developing fever and cough within 14 days of travel from the Middle East should seek medical advice and must report their travel history so thatÌýappropriate clinicalÌýassessment, infection controlÌýmeasuresÌýand testing can be undertakenÌý
- people who are acutely ill with an infectious disease areÌýadvised not to travelÌýbut to seek health adviceÌýimmediatelyÌý
The Hajj and UmrahÌý
There have been no reported increases in travel-related MERS-CoV cases for previous Hajj pilgrimages. However, cases of MERS-CoV have been imported to countries outside of Saudi Arabia following return from Umrah, a separate pilgrimage which can be performed throughout the year.
UKHSA remainsÌývigilant and closelyÌýmonitorsÌýdevelopments in the Middle East and in the rest of the world where new cases haveÌýemergedÌýand continues to liaise with international colleagues to assess whether our recommendations need to change.Ìý
Infographics for people travelling to or returning from the Middle East are available.
The National Travel Health Network and Centre (NaTHNaC) publishes  .
Further information for health professionals on theÌýpossible MERS case definition is also available.