A medical worker gets ready to take COVID-19 test inside a mobile swab collection vehicle in Kathmandu, Nepal on July 30, 2020. (Photo by Sulav Shrestha/Xinhua)

A medical worker takes a man's swab sample for COVID-19 test from a mobile swab collection vehicle in Kathmandu, Nepal on July 30, 2020. (Photo by Sulav Shrestha/Xinhua)

Medical workers wait for people to take COVID-19 test inside a mobile swab collection vehicle in Kathmandu, Nepal on July 30, 2020. (Photo by Sulav Shrestha/Xinhua)

A medical worker takes a woman's swab sample for COVID-19 test from a mobile swab collection vehicle in Kathmandu, Nepal on July 30, 2020. (Photo by Sulav Shrestha/Xinhua)

Medical workers get ready to take COVID-19 test inside a mobile swab collection vehicle in Kathmandu, Nepal on July 30, 2020. (Photo by Sulav Shrestha/Xinhua)