Prognosis
Pfizer, Astra Shots Keep Delta Patients Out of Hospitals
- England findings show strong protection after two doses
- Scottish research finds vaccines work against mutation
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Covid-19 vaccines from Pfizer Inc. and AstraZeneca Plc are highly effective after two doses at preventing hospitalization of those infected with the delta variant, underscoring the urgency in getting people fully protected, according to health authorities in England.
The Pfizer and BioNTech SE shot is 96% effective against hospitalization after two doses, while the AstraZeneca and University of Oxford Covid inoculation is 92% effective, according to an analysis announced Monday by Public Health England. Those results are comparable with the protection offered against the alpha variant, which first emerged in Britain, the data show.