Nine Months after Cyclone-Idai, Mozambique is building health system preparedness with support from Health Alliance International & the Center for Disaster Philanthropy.

"It's really expensive. When all this started, I had to sell everything I owned," says cancer patient Awa Florence. "I don't have anything left. I'm a widow and I don't have the means to pay for further tests."

With urban populations surging around the world, cities will struggle to keep residents safe from fast-growing heat risks turbo-charged by climate change, scientists and public health experts warned this week.

Heat is already the leading cause of deaths from extreme weather in countries including the United States. The problem is particularly severe in cities, where temperature extremes are rising much faster than the global average, they said.

Dr. Jean-Jacques Muyembe says his story starts in 1973. He had just gotten his Ph.D. at the Rega Institute in Belgium. He could have stayed in Europe, but he decided to return to Congo, or what was then known as Zaire, which had only recently attained independence from Belgium. He took a job as a field epidemiologist. In 1976, he was called to an outbreak of a mysterious disease in central Congo.