Monkeypox – often caught through handling monkeys – is a rare viral disease that kills around 10 per cent of people it strikes, according to figures.
The virus responsible for the disease is found mainly in the tropical areas of west and central Africa.
Monkeypox was first discovered in 1958, with the first reported human case in the Democratic Republic of Congo in 1970. Human cases were recorded for the first time in the US in 2003 and the UK in September 2018.
It resides in wild animals but humans can catch it through direct contact with animals, such as handling monkeys, or eating inadequately cooked meat.
The virus can enter the body through broken skin, the respiratory tract, or the eyes, nose or mouth.
It can pass between humans via droplets in the air, and by touching the skin of an infected individual, or touching objects contaminated by them.
Symptoms usually appear within five and 21 days of infection. These include a fever, headache, muscle aches, swollen lymph nodes, chills and fatigue.
The most obvious symptom is a rash, which usually appears on the face before spreading to other parts of the body. This then forms skin lesions that scab and fall off.
Monkeypox is usually mild, with most patients recovering within a few weeks without treatment. Yet, the disease can often prove fatal.
There are no specific treatments or vaccines available for monkeypox infection, according to the World Health Organization.