Some Good News From Quartz Daily Brief

Some drug companies have had some success with tests of a Covid vaccine. They need to do more testing, but a tenuous ray of hope is better than none.

• Moderna said its test on 45 volunteers in March exceeded expectations; its final-stage trial with 30,000 participants will start July 27.
• India’s Zydus has started human studies, aiming to recruit 1,000 subjects.
• An initial trial of a new vaccine by Russia’s military had no complications or adverse reactions.
• The US Food and Drug…