A review on COVID-19 vaccinations

Abstract

The year 2019 witnessed a pandemic named COVID-19 caused by infection severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). It emerged in Wuhan, China, in December 2019 and has affected millions since then. It led to a global cry for vaccine development. Scientists arrayed the SARS-CoV-2 genome within a month of the outbreak. They used the parallels between SARS-CoV-1 and SARS-CoV-2 to speed up the vaccine preparation. As of now, different types of COVID-19 vaccines are prevailing.