An Everest expedition abandons base camp after several climbers test positive for the coronavirus. Expedition members wearing face masks at Mount Everest base camp on May 1. A prominent mountaineering company abandoned its summit expedition on Saturday after more climbers were found to be infected with the coronavirus.Credit...Prakash Mathema/Agence France-Presse — Getty Images By Bhadra Sharma May 15, 2021, 1:56 p.m. ET KATHMANDU, Nepal — A prominent mountaineering company abandoned its expedition to Mount Everest, dismantling its tents at base camp on Saturday after members of its team tested positive for the coronavirus. An American climber and three Sherpa guides from a 51-person expedition were evacuated from base camp and hospitalized in Kathmandu, according to Ang Tendi Sherpa, managing director of the local agency that obtained the permit for the expedition.