An elderly person receives a free COVID-19 test in Kigali, capital city of Rwanda, on Jan. 23, 2021. The Rwandan Biomedical Center on Saturday launched free COVID-19 tests in the capital city Kigali on the elderly people aged 70 years and above and those with chronic diseases to ascertain the COVID-19 transmission among them. (Photo by Cyril Ndegeya/Xinhua)
A person receives a free COVID-19 test in Kigali, capital city of Rwanda, on Jan. 23, 2021. The Rwandan Biomedical Center on Saturday launched free COVID-19 tests in the capital city Kigali on the elderly people aged 70 years and above and those with chronic diseases to ascertain the COVID-19 transmission among them. (Photo by Cyril Ndegeya/Xinhua)
An elderly man receives a free COVID-19 test in Kigali, capital city of Rwanda, on Jan. 23, 2021. The Rwandan Biomedical Center on Saturday launched free COVID-19 tests in the capital city Kigali on the elderly people aged 70 years and above and those with chronic diseases to ascertain the COVID-19 transmission among them. (Photo by Cyril Ndegeya/Xinhua)
A man receives a free COVID-19 test in Kigali, capital city of Rwanda, on Jan. 23, 2021. The Rwandan Biomedical Center on Saturday launched free COVID-19 tests in the capital city Kigali on the elderly people aged 70 years and above and those with chronic diseases to ascertain the COVID-19 transmission among them. (Photo by Cyril Ndegeya/Xinhua)
A person receives a free COVID-19 test in Kigali, capital city of Rwanda, on Jan. 23, 2021. The Rwandan Biomedical Center on Saturday launched free COVID-19 tests in the capital city Kigali on the elderly people aged 70 years and above and those with chronic diseases to ascertain the COVID-19 transmission among them. (Photo by Cyril Ndegeya/Xinhua)