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AstraZeneca vaccine appears to substantially reduce transmission of the coronavirus, study shows
The Oxford-AstraZeneca Covid-19 vaccine appears to substantially reduce transmission of the virus, rather than simply preventing symptomatic infections, UK researchers have suggested.
The rate of positive PCR tests declined by about half after two doses, according to preliminary results by researchers at the University of Oxford that have yet to be peer reviewed.
Their analysis, released as a preprint Tuesday, also supports spacing out doses and estimates good efficacy after just one shot of the Oxford-AstraZeneca vaccine.
https://www.cnn.com/2021/02/03/health/astrazeneca-vaccine-transmission-gbr-intl/index.html
