Moderna on track for large COVID-19 vaccine test in July

[ahlam1399]

A U.S. company says it's on track to begin a huge study next month to prove if its COVID-19 vaccine candidate really works, while Brazil will help with final testing of a different shot from China

أكثر... (https://abcnews.go.com/Health/wireStory/moderna-track-large-covid-19-vaccine-test-july-71193072)