EXPLAINER | Why monkeypox cases are rising in Europe:

A handful of cases of monkeypox have now been reported or are suspected in the United Kingdom, Portugal and Spain.
The outbreaks are raising alarm because the disease mostly occurs in west and central Africa, and only very occasionally spreads elsewhere.
Monkeypox is a virus that causes fever symptoms as well as a distinctive bumpy rash. It is usually mild, although there are two main strains: the Congo strain, which is more severe with up to 10% mortality and the West African strain, which has a fatality rate of more like 1% of cases. The UK cases have been reported as the West African strain.