The U.S. plan to donate 500 million vaccines to developing countries aims to address the lopsided distribution and exacerbated impact of the virus. In Africa, Uganda is still struggling to vaccinate those most at-risk. It has recorded more than 120,000 cases of COVID-19 and over 3100 deaths, but the true toll is likely much higher. Special correspondent Fred de Sam Lazaro reports from Kampala. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders