| REVIEW ARTICLE |
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| Year : 2022 | Volume
: 13
| Issue : 1 | Page : 151 |
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A comprehensive review on various aspects of SARS-CoV-2 (COVID-19) vaccines
Sajjad Rahimi Pordanjani1, Ali Rahimi Pordanjani2, Hasan Askarpour3, Mehrdad Arjmand3, Masoudeh Babakhanian4, Masoud Amiri5, Elaheh Mazaheri6
1 Social Determinants of Health Research Center; Department of Epidemiology and Biostatistics, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
2 Student Research Committee, Islamic Azad University, Mashhad Branch, Mashhad, Iran
3 Department of Disease Management, Deputy of Health, Yasuj University of Medical Sciences, Shahrekord, Iran
4 Social Determinants of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran
5 Department of Disease Management, Deputy of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
6 Health Information Technology Research Center, Students Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
Correspondence Address:
Elaheh Mazaheri
Health Information Technology Research Center, Students Research Committee, Isfahan University of Medical Sciences, Isfahan
Iran
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/ijpvm.ijpvm_513_21
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This is a comprehensive review based on the published papers in the field of COVID-19 vaccines and vaccination. Many efforts have been made to develop vaccines to combat this pandemic. Since December 2020, more than 200 vaccines have been tested in various research stages and in clinical trials on humans, of which eight vaccines reached phase four clinical trials in humans and approved by FDA and EUA. After the Pfizer–BioNTech vaccine that had the highest efficacy (95%), the efficacy of the other vaccines are as follows: Moderna 94.5%, Sputnik V 91%, Novavax 89.7%, Sinopharm 79.3%, Oxford/AstraZenaca 70.4%, Johnson and Johnson 66.9%, and Sinovac 50.7%. At present, protein-based vaccines, with 35% of all available COVID-19 vaccines, are the most common technique in the vaccine production, and then there are vaccines of non-replicating viral vector (13.3%), mRNA1 (12.1%), DNA (10.2%), replicating viral vector (9.8%), and inactivated vaccines (8.2%). The most frequently recognized adverse effects within 7 days of each vaccine dose involved fever, fatigue, headache, chill, and myalgia. The mRNA-based vaccines were associated with a higher occurrence of local side effects (78.3 vs. 70.4%; Sig. = 0.064), whereas the viral vector-based vaccine was associated with a higher prevalence of systemic side effects (87.2 vs. 61%; Sig. < 0.001). Based on the evidence and articles in the field of vaccination, AstraZeneca-Oxford and Sinopharm vaccines reported the highest and lowest side effects, respectively. Because of being emerging, pathogenicity, and high infectivity of COVID-19, vaccination against the disease to prevent its incident rate and decrease the prevalence rate is recommended immediately. Being informed of various aspects of the existing vaccines such as efficacy, effectiveness, safety, etc.can accelerate to make effective and useful choices and consequently have a vaccinated community against the epidemic.
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