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> Unlike other vaccines being trialled, the Oxford team had been taking weekly swabs from all volunteers to check whether they were infected but showing no symp
by lbeltrame 6y ago
> Unlike other vaccines being trialled, the Oxford team had been taking weekly swabs from all volunteers to check whether they were infected but showing no symptoms.
FTR, this only happened for one of the trials (the AZ results are actually from several trials combined) in England and Wales. In Brazil, for example, this was not done.