BBC A new strain of mpox, previously called monkeypox, has been detected in a person in England, say UK health officials.
The virus is a mix of two major types of the mpox virus, and was found in someone who recently returned from travelling in Asia.
Officials say they are still assessing the significance of the new strain.
The UK Health Security Agency (UKHSA) says it is normal for viruses to evolve. Getting vaccinated remains the best way to protect against severe disease – although an mpox infection is mild for many.