TORONTO Leo Namen breathes heavily, taking a breath between words as though just talking is making him winded. Ropes dictate where heâs allowed to go, and his oxygen saturation levels are just 89 per cent. The Canadian climber and heart attack survivor is 5,364 metres above sea level, at Mount Everestâs base camp. Despite the restrictions put in place by the Napalese government and the precautions taken at base camp, at least one climber has tested positive for COVID-19 and Namen said there might be more. âThereâs some controls that the government has put on to reduce the risk of this happening but still, thereâs been some cases already of COVID-19 within base camp,â he told CTVNews.ca in a FaceTime interview on Wednesday.