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The New Paper Two doses of Pfizer, AstraZeneca shots effective against Delta: Study Two doses of Pfizer or AstraZeneca s coronavirus vaccine are almost as effective against the Delta variant as they are against the Alpha variant, a study showed. PHOTO: REUTERS Jul 23, 2021 06:00 am 0 Engagements LONDON: 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, a study published on Wednesday showed. Officials say vaccines are highly effective against the Delta variant, now the dominant variant worldwide, though the study reiterated that one shot of the vaccines is not enough for high protection.

City ofUnited kingdomAstrazeneca covidPublic health englandNew england journal of medicineநகரம் ஆஃப்ஒன்றுபட்டது கிஂக்டம்பொது ஆரோக்கியம் இங்கிலாந்துபுதியது இங்கிலாந்து இதழ் ஆஃப் மருந்து