A Systematic Review on COVID-19 Vaccine Strategies, Their Effectiveness, and Issues.

ABSTRACT: COVID-19 vaccines are indispensable, with the number of cases and mortality still rising, and currently no medicines are routinely available for reducing morbidity and mortality, apart from dexamethasone, although others are being trialed and launched. To date, only a limited number of vaccines have been given emergency use authorization by the US Food and Drug Administration and the European Medicines Agency. There is a need to systematically review the existing vaccine candidates and investigate their safety, efficacy, immunogenicity, unwanted events, and limitations. The review was undertaken by searching online databases, i.e., Google Scholar, PubMed, and ScienceDirect, with finally 59 studies selected. Our findings showed several types of vaccine candidates with different strategies a

SUBMITTER: Khandker SS 

PROVIDER: S-EPMC8708628 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature