Previously submitted to: JMIR Public Health and Surveillance (no longer under consideration since Apr 05, 2021)
Date Submitted: Nov 1, 2020
Open Peer Review Period: Oct 30, 2020 - Dec 25, 2020
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Immunogenicity and Safety Profile of COVID-19 Vaccines- A Systematic Review
ABSTRACT
Background:
An effective vaccine will be important in controlling severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pandemic.
Objective:
In this study, we aim to analyze the degree of immunogenicity that rises after administering different vaccines, and to study their efficacy.
Methods:
We systematically reviewed multiple vaccine candidates at different stages of clinical trials to prevent Coronavirus disease in 2019 (COVID-19). We reviewed literature from four major electronic databases (PubMed, MEDLINE, PubMed Central, and Google scholar) to identify studies on SARS-CoV-2 vaccine candidates. This article included studies that include clinical trials in multiple stages and systematic reviews published in 2020. We performed a quality assessment with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines for our articles.
Results:
We included a total of 19 articles. This review article has a total of 24,342 individuals. These studies show promising results regarding vaccines candidates, safety profiles, and immunogenicity with the effective generation of neutralizing antibodies and specific T-cell responses. Adverse effects range from mild to moderate, with no serious adverse effects reported. It is unclear how long the generated immunity will last, and a follow up of the study participants for an extended one-year period will be needed.
Conclusions:
Ascertaining vaccines' efficacy and safety in vulnerable populations is essential for the general use of vaccine use. A number of these vaccines are currently under phase III or to enter phase III and may increase vaccines' efficacy and safety in different populations.
Citation
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