AstraZeneca, J&J resume most promising Covid-19 vaccine trials in US

Covid-19 has now killed more than 223,000 Americans, and the health crisis is a top issue in the presidential election pitting incumbent Donald Trump against Joe Biden.

AstraZeneca, J&J resume most promising Covid-19 vaccine trials in US
Covid-19 has now killed more than 223,000 Americans, and the health crisis is a top issue in the presidential election pitting incumbent Donald Trump against Joe Biden.