Health workers must overcome great challenges to battle one of the world's most severe COVID-19 outbreaks, which stretch from villages without hospitals to the top of the world's highest mountain.
Climbers are reporting an outbreak at Everest Base Camp in Nepal, where hundreds of climbers assemble as they prepare for summiting the world's tallest peak.
After years of surveys and calculations, the countries said Tuesday that the world's highest peak now stands about 29,032 feet above sea level — more than 2 feet taller than the previous consensus.