Several major players in the global race for a coronavirus vaccine took steps to move their research forward this week.
Pharmaceutical companies developing potential vaccines, including Moderna and Johnson & Johnson, announced start times for various phases of clinical trials in humans. In addition, a U.S. Army lab announced the selection of a lead vaccine candidate, along with two backups that they plan to pursue.
Full coverage of the COVID-19 outbreak and how it impacts you
While most researchers are looking forward to new therapeutics, others are considering old vaccines to provide a temporary boost.