AstraZeneca manufacturing error clouds vaccine study results

Thursday, 26 Nov, 8.57 pm
International New York Times,

The announcement this week that a cheap, easy-to-make coronavirus vaccine appeared to be up to 90% effective was greeted with jubilation. 'Get yourself a vaccaccino,' a British tabloid celebrated, noting that the vaccine, developed by AstraZeneca and the University of Oxford, costs less than a cup of coffee.

But since unveiling the preliminary results, AstraZeneca has acknowledged a key mistake in the vaccine dosage received by some study participants, adding to questions about whether the vaccine's apparently spectacular efficacy will hold up under additional testing.