Zika May Be Scary, But a Yellow Fever Outbreak Is Underway and It’s Far More Deadly
Is yellow fever the next pandemic? The World Health Organization confirmed on Monday that recent cases in the Democratic Republic of the Congo are connected to an outbreak that began several months ago in Angola, the largest in that country in 30 years. Now some infectious disease researchers are worried that that low vaccination rates in Africa could make it hard to contain the disease.
The outbreak has killed 225 in Angola since December, and 21 so far in the DRC. There is a vaccine for yellow fever, which is endemic in certain parts of South America and Africa. But the Aedes aegypti mosquito—the same insect that transmits Zika virus and dengue fever—thrives in cities, and especially in urban slums, where many people are unvaccinated. That, combined with the rapid growth of urban areas in the tropical and subtropical regions where the mosquito thrives, has scientists worried that if the disease is allowed to spread to other parts of Africa and perhaps Asia, it could overwhelm the world’s supply of vaccines.

(Read more: Nature, “Inside the Mosquito Factory That Could Stop Dengue and Zika,” “The Extinction Invention”)
Keep Reading
Most Popular
The inside story of how ChatGPT was built from the people who made it
Exclusive conversations that take us behind the scenes of a cultural phenomenon.
How Rust went from a side project to the world’s most-loved programming language
For decades, coders wrote critical systems in C and C++. Now they turn to Rust.
Design thinking was supposed to fix the world. Where did it go wrong?
An approach that promised to democratize design may have done the opposite.
Sam Altman invested $180 million into a company trying to delay death
Can anti-aging breakthroughs add 10 healthy years to the human life span? The CEO of OpenAI is paying to find out.
Stay connected
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.