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Pfizer, AstraZeneca highly effective against Delta variant

LONDON: Pfizer and AstraZeneca vaccines are highly effective against the Delta variant, a study published on Wednesday has shown.

It said, two doses of Pfizer’s shot was 88% effective at preventing symptomatic disease from the Delta variant, compared to 93.7% against the Alpha variant, broadly the same as previously reported.

Two shots of AstraZeneca vaccine were 67% effective against the Delta variant, up from 60% originally reported, and 74.5% effective against the Alpha variant, compared to an original estimate of 66% effectiveness.

Officials say, two doses of Pfizer or AstraZeneca’s Covid-19 vaccine are nearly as effective against the highly transmissible Delta coronavirus variant as they are against the previously dominant Alpha variant, Reuters reported.

The study, which was published in the New England Journal of Medicine, shows the two vaccines are highly effective against the Delta variant, but must be in two shots. One shot of the vaccines is not enough for high protection.

Written by Ezri

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