Efficacy of COVID-19 Vaccine

With the onset of novel coronavirus, scientists and medical professionals worked tirelessly to develop an effective clinically approved vaccine for same. Initially what seemed impossible is now a reality not only have experts manufactured COVID vaccines in such short span time, but they also developed different types versions it too. Equitable access safe critical ending COVID- 19 pandemic, so hugely encouraging see many proving going into development. WHO working with partners develop, manufacture deploy vaccines. Safe are game-changing tool. Being vaccinated does mean that we can throw caution wind put ourselves others at risk, particularly because research still ongoing how much protect against disease infection transmission. But it’s will stop rather vaccination proper efficacy. Out more than 100 articles on COVID-19 SARS-CoV-2 41 were included present study. As 1 May 2021, there been 152 661 445 Covid-19 cases 3 202 256 deaths globally. This pandemic led race discover achieve herd immunity curtail damaging effects Covid-19. study aims discuss most recent WHO-approved subtypes, their trials, doses 16 number countries use following Pfizer 85, Moderna 46, Oxford/AstraZeneca 101, Janssen 41. JOPSOM 2021; 40(2):65-72