COVID-19 Vaccine Trials Hope for Breakthrough By October

May 10, 2020 02:00 PM
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A main coronavirus vaccine trial — a joint venture between an American and a German company — got underway this week in the United States. Some participants are U.S. medical students. This trial joins others around the world, as pharmaceutical companies compete to discover the breakthrough for COVID-19. VOA's Carolyn Presutti takes us through what’s being done and how.