Moderna's Covid vaccine shows promise against Delta variant in lab study
Moderna's Covid-19 vaccine shows promise against the Delta variant of the coronavirus which was first identified in India.
Moderna's Covid-19 vaccine shows promise against the Delta variant of the coronavirus which was first identified in India.
The world’s biggest COVID-19 vaccine study got underway Monday with the first of 30,000 planned volunteers helping to test shots created by the U.S. government -- one of several candidates in the final stretch of the global vaccine race.