Immunogenicity Characterization of COVID-19 Vaccines: A Systematic Review and Meta-analysis

被引:0
作者
Vasconcelos, Zanair Soares [1 ,2 ]
Salem, Hany Abdulateif [3 ]
Veiga, Samia Pimenta [1 ]
de Lima, Fabiola Estefany Botelho [4 ]
Goncalves, Cesar Rogerio da Silva [5 ]
dos Santos, Eliane Carvalho [2 ]
Brandao, Alba Regina Jorge [1 ]
Couceiro, Katia Nascimento [1 ,6 ]
Guerra, Jorge Augusto de Oliveira [1 ,7 ]
Guerra, Maria das Gracas Vale Barbosa [1 ,6 ,7 ]
机构
[1] Univ Estado Amazonas, Programa Posgrad Stricto Sensu Med Trop, Manaus, AM, Brazil
[2] Ctr Instrucao Guerra Selva, Manaus, AM, Brazil
[3] Egyptian Minist Hlth & Populat, Cairo, Egypt
[4] Fac Martha Falcao, Manaus, AM, Brazil
[5] Secretaria Municipal Saude Manaus, Lab Distrital Sul, Manaus, AM, Brazil
[6] Univ Estado Amazonas, Manaus, AM, Brazil
[7] Fundacao Med Trop Heitor Vieira Dourado, Manaus, AM, Brazil
关键词
COVID-19; SARS-CoV-2; Vaccines; Immunogenicity; Coronavirus vaccine; CONTROLLED PHASE-2 TRIAL; SAFETY; ADULTS;
D O I
10.1590/0037-8682-0661-2021
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
Introduction: Immunogenicity has emerged as a challenge in the development of vaccines against coronavirus disease of 2019 (COVID-19). Immunogenicity is a determinant of the efficacy and safety of vaccines. This systematic review and associated meta-analysis summarized and characterized the immunogenicity of COVID-19 vaccines in randomized controlled trials (RCTs). Methods: Relevant RCTs were systematically sourced from different medical databases in August 2021. The risk ratios and mean differences with 95% confidence intervals were calculated. Results: Of 2,310 papers, 16 RCTs were eligible for review. These RCTs involved a total of 26,698 participants (15,292 males and 11,231 females). The pooled results showed a significant difference in the geometric mean titer between the vaccinated and control groups in favor of the vaccine group after 1 and 2 months of follow-up, for the young age group (18 -< 55y), and with different doses (P < 0.001). The difference in the older age group (>55y) was insignificant (P = 0.24). The seroconversion rate of spike neutralizing antibodies favored the vaccine groups 1 or 2 months after vaccination (P < 0.001). The seroconversion rate of the vaccine group was significantly different (P < 0.001) from that of the control group. Conclusions: Vaccination elicits immunogenicity in the follow-up period for all age groups and at low and large doses. Therefore, people should be encouraged to receive vaccines currently being offered. A boost dose has been asserted for the elderly.
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页数:14
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