Delhi (The Stellar News) Saksham Kalia: In the latest study by scientists, Astrazeneca and Pfizer have shown abilities to neutralize the effect of most dangerous variants of Covid, Delta and Kappa. In this study the blood samples of people who have got two shots of vaccines were collected and analysed.In this study the scientist found evidences of neutralization of delta and kappa variants by Astrazeneca and Pfizer vaccines.
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