The saga of mishaps and miscommunications overshadowing AstraZeneca’s Covid vaccine

Yet again, AstraZeneca is in a crisis of its own making.

The latest in the drug manufacturer’s long string of mishaps and miscommunications came Tuesday, when top federal health officials accused the company of highlighting in a press release overly positive data about the efficacy of its coronavirus vaccine. It came after widely publicized snafus like administering incorrect doses during clinical trials and keeping U.S. regulators in the dark after pausing a trial entirely due to safety concerns.