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AstraZeneca Covid vaccine study results clouded by manufacturing error – NBC News
AstraZeneca and Oxford University acknowledged a manufacturing error that is raising questions about preliminary results of their experimental Covid-19 vaccine.
LONDON AstraZeneca and Oxford University on Wednesday acknowledged a manufacturing error that is raising questions about preliminary results of their experimental Covid-19 vaccine.
A statement describing the error came days after the company and the university described the shots as highly effective and made no mention of why some study participants didn’t receive as much vaccine in the first of two shots as expected.
In a surprise, the group of volunteers that got a lower dose seemed to be much…
