A health worker conducts a COVID-19 rapid antigen test for a vendor at a urban park in Colombo, capital of Sri Lanka, on Dec. 29, 2020. Sri Lanka is presently facing a second wave of the COVID-19 pandemic and has recorded 41,603 positive COVID-19 patients and 194 deaths caused by the infection. (Xinhua/Tang Lu)
A health worker conducts a COVID-19 rapid antigen test for a vendor at a urban park in Colombo, capital of Sri Lanka, on Dec. 29, 2020. Sri Lanka is presently facing a second wave of the COVID-19 pandemic and has recorded 41,603 positive COVID-19 patients and 194 deaths caused by the infection. (Xinhua/Tang Lu)