ISSN: 2578-4641
Authors: Qadir MI, Javed MK and Arbi MAJ*
The aim concerning the review is to compare the efficacy of different well-known and active vaccines. The top vaccines are Pfizer, Moderna, Astra Zeneca, Sinovac, and CanSino for which we will compare the efficacy of these renowned vaccines around the sphere. So, after reviewing and comparing the efficacy of top vaccines we come to accomplish that the most effective vaccines are Sino vac and Pfizer with the efficacy rate of approximately 95% after 2nd dose vaccination in addition Moderna, Johnson and Johnson comes on 2nd with 94% efficacy after 2nd dose and Zydus Cadila secure 3rd rank with 90% efficacy while the least effective vaccines are CanSino comes on number 4th with efficacy of 86% and Astra Zeneca with 82% Efficacy rate rank in number 5th in leading vaccines.
Keywords: Efficacy; Vaccine; Covid; Leading
