There are now nearly 15,000 monkeypox cases worldwide. While the United States, Britain, Canada and other countries have bought millions of vaccines, none have gone to Africa, where a more severe version of monkeypox has already killed more than 70 people. Rich countries have not yet reported any monkeypox deaths.

 

“What’s happening in Africa is almost entirely separate from the outbreak in Europe and North America,” said Dr. Paul Hunter, a professor of medicine at Britain’s University of East Anglia who previously advised WHO on infectious diseases.

 

The U.N. health agency said this week that outside of Africa, 99% of all reported monkeypox cases are in men and of those, 98% are in men who have sex with other men. Still, the disease can infect anyone in close, physical contact with a monkeypox patient, regardless of their sexual orientation.

 

“In these very active gay sexual networks, you have men who really, really don’t want people to know what they’re doing and may not themselves always know who they are having sex with,” Hunter said.

 

Some of those men may be married to women or have families unaware of their sexual activity, which “makes contact tracing extremely difficult and even things like asking people to come forward for testing,” Hunter said, explaining why vaccination may be the most effective way to shut down the outbreak.

 

That’s probably not the case in Africa, where limited data suggests monkeypox is mainly jumping into people from infected animals. Although African experts acknowledge they could be missing cases among gay and bisexual men, given limited surveillance and stigmatization against LGBTQ people, authorities have relied on standard measures like isolation and education to control the disease.

 

Dr. Placide Mbala, a virologist who directs the global health department at Congo’s Institute of National Biomedical Research, said there are also noticeable differences between patients in Africa and the West.