More than 30 sick climbers have been evacuated from the foot of Mount Everest, raising fears that coronavirus may scupper a hoped-for bumper season on the world's highest mountain.
Nepal's tourism industry suffered a devastating blow last year when the pandemic prompted a complete shutdown of its summits, costing millions in lost revenue.
This year authorities have eased quarantine rules in an effort to lure back foreign adventurers and have issued climbing permits to more than 400 people, a new record.
But the warmer weather that ushers in safer conditions for scaling Nepal's dangerous, snow-capped peaks has coincided with a deadly second wave of Covid-19 infections, with active cases in the country rising six-fold in the last two weeks.