Could a Single Vaccine Work Against All Coronaviruses?

The invention of Covid-19 vaccines will be remembered as a milestone in the history of medicine, creating in a matter of months what had before taken up to a decade. But Dr. Kayvon Modjarrad, the director of Emerging Infectious Diseases Branch at

A Flash Flood Pushed Forward by Climate Change

The flash flood that killed dozens of people and left hundreds missing in the Himalayas of India on Sunday was far from the first such disaster to occur among the world’s high-mountain glaciers. In a world with a changing climate, it won’t

A Surprise in Africa: Air Pollution Falls as Economies Rise

LAGOS, Nigeria — Rapidly growing countries generally see sharp increases in air pollution as their populations and economies expand. But a new study of air quality in Africa published on Monday has found the opposite: One of the continent’s most vibrant regions

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