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South Africa halts AstraZeneca vaccine after study questions effectiveness against variant

Shiloh

Editor, Senior Moderator
Source: https://www.nbcnews.com/news/world/...tudy-questions-effectiveness-against-n1256981

South Africa halts AstraZeneca vaccine after study questions effectiveness against variant
Use of the Oxford-AstraZeneca vaccine on frontline workers was suspended after a small trial suggested it isn't effective against the country's dominant variant.
Feb. 7, 2021, 4:28 PM EST / Source: Associated Press
By The Associated Press

JOHANNESBURG — South Africa has suspended plans to inoculate its front-line health care workers with the Oxford-AstraZeneca vaccine after a small clinical trial suggested that it isn't effective in preventing mild to moderate illness from the variant dominant in the country.

South Africa received its first 1 million doses of the AstraZeneca vaccine last week and was expected to begin giving jabs to health care workers in mid-February. The disappointing early results indicate that an inoculation drive using the AstraZeneca vaccine may not be useful...
 
The claim was that invitro was demonstrating effectiveness, yet this invivo preliminary result indicates otherwise. Is that a fair summary?

How small was the trial? Was it too small to draw valid conclusions?
 
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