The monkeypox outbreak has been declared a global health emergency by the World Health Organization.
While countries in Europe have been hardest hit, cases have also been reported in the US, Canada, Australia, Nigeria, Israel, Brazil and Mexico, among others.
What is monkeypox?
Monkeypox is a viral infection typically found in central and western Africa. Cases, usually small clusters or isolated infections, are sometimes diagnosed in other countries, including the UK where the first case was recorded in 2018 in an individual thought to have contracted the virus in Nigeria.
There are two forms of monkeypox, a milder west African strain and a more severe central African, or Congo strain. The current international outbreak appears to involve the west African strain, although not all countries have released such information.
According to the UK Health Security Agency, early symptoms of monkeypox include fever, headache, muscle aches, swollen lymph nodes and chills, as well as other features such as exhaustion.
“A rash can develop, often beginning on the face, then spreading to other parts of the body, including the genitals,” the UKHSA says. “The rash changes and goes through different stages, and can look like chickenpox or syphilis, before finally forming a scab, which later falls off.”
Most patients recover from monkeypox in a few weeks.
How is it spread?
Monkeypox does not spread easily between humans, and requires close contact. According to the US Centers for Disease Control and Prevention, it is thought that human-to-human transmission primarily occurs through large respiratory droplets.
“Respiratory droplets generally cannot travel more than a few feet, so prolonged face-to-face contact is required,” the CDC says. “Other human-to-human methods of transmission include direct contact with body fluids or lesion material, and indirect contact with lesion material, such as through contaminated clothing or linens.”
Where have cases been found?
Globally, there have so far been 16,016 monkeypox cases – 4,132 of which were in the past week, according to WHO data. It is now in 75 countries and territories and there have been five deaths.
The European region has the highest number of total cases, at 11,865, and the highest increase in the past seven days, with 2,705.
How do you catch it?
The WHO said the outbreak was largely among men who have sex with men who had reported having sex recently with new or multiple partners. However, experts have stressed that anyone can get monkeypox as it is spread by close or intimate contact, with the UN having warned that some media portrayals of Africans and LGBTQ+ people “reinforce homophobic and racist stereotypes and exacerbate stigma”.
How worried should we be?
The west African strain of monkeypox is generally a mild infection for most people, but it is important those infected and their contacts are identified. The virus is more of a concern among vulnerable people such as those with weakened immune systems or who are pregnant.