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.
While most researchers are looking forward to new therapeutics, others are considering old vaccines to provide a temporary boost.
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