| The world has been suffering from COVID-19 disease for more than a year, and it still has a high mortality rate. In
addition to the need to minimize transmission of the virus through non-pharmacological measures such as the
use of masks and social distance, many efforts are being made to develop a variety of vaccines to prevent the
disease worldwide. So far, several vaccines have reached the final stages of safety and efficacy in various phases
of clinical trials, and some, such as Moderna/NIAID and BioNTech/Pfizer, have reported very high safety and
protection. The important point is that comparing different vaccines is not easy because there is no set standard
for measuring neutralization. In this study, we have reviewed the common platforms of COVID-19 vaccines and
tried to present the latest reports on the effectiveness of these vaccines. |