UK health officials have warned travellers returning from areas affected by the Oropouche virus to seek “urgent medical advice” if they experience symptoms of the disease.
On 14 August, the UK Health Security Agency (UKHSA) reported three imported Oropouche cases were confirmed in British residents who had visited Brazil earlier this year.
The “sloth fever” vector-borne virus – spread by insects – naturally occurs in sloths, primates and birds.
In July 2024, Brazil reported the first two deaths linked to the Oropouche virus.
All three cases in the UK were detected in people who had travelled to Brazil after a surge of virus infections across the region last year.
Here’s everything holidaymakers need to know to stay safe from Oropouche while travelling.
Read more: Deadly ‘sloth virus’ detected in UK for first time
What is Oropouche, and how is it spread?
Oropouche virus is an illness that typically causes fever, headache, muscle pain, joint pain, chills, nausea, and vomiting in humans.
The tropical infection spreads through insect bites from midges and certain mosquitoes, and may also be transmitted through sexual contact.
What are the symptoms?
Symptoms of Oropouche usually appear four to eight days after a bite, but in some cases return weeks later.
These include:
- fever
- headache
- joint pain
- muscle aches
- chills
- nausea and vomiting
- rash
- sensitivity to light
- dizziness
- pain behind the eyes
More serious conditions, such as meningitis and brain inflammation, can occur in some cases.
Where is Oropouche most common?
First found in Trinidad and Tobago in the 1950s, the Oropouche virus has been seen in countries across Central and South America.
There has been a rise in infections globally since 2024, with Brazil reporting the largest outbreaks.
So far this year, globally, there have been over 12,000 confirmed cases of the virus, with the majority (11,888) in the South American country.
As of 2025, travel-related cases have been identified in the UK for the first time, with three cases of Oropouche virus reported in Britain between January and June this year.
Can I get an Oropouche vaccine?
There is no vaccine currently available for Oropouche virus; however, travellers can take the usual package of precautions to avoid insect bites.
If infected, symptoms can be managed with rest, fluids and…
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