Advantages And Disadvantages of Different COVID-19 Vaccines

Abstract

After the outbreak of the epidemic, countries around the world have begun intensive research and development of vaccines. Theoretically, all existing vaccine types and technologies can be applied to COVID-19 vaccine research. More than 100 COVID-19 vaccine projects registered on the official website of WHO include these three generations of different types of vaccines. At present, 16 vaccines have entered clinical trials, five of which are from China, including two inactivated vaccines under China Biotechnology Co., Ltd. (hereinafter referred to as "China Biotechnology"). Most of these vaccines are still in phase I. This article will introduce inactivated vaccine, Ad5-nCoV Adenovirus vector COVID-19 vaccine, RBD CHO vaccine and nucleic acid vaccine in detail. The different vaccines have different advantages due to the different ways of working. At the moment when the COVID-19 vaccine has been launched, personal protection and cutting off the transmission route of COVID-19 are still the most important ways to protect oneself and prevent the spread of the epidemic.