Differential Antibody Response to Inactivated COVID-19 Vaccines in Healthy Subjects.
Front Cell Infect Microbiol
; 11: 791660, 2021.
Article
em En
| MEDLINE
| ID: mdl-34976867
ABSTRACT
The appearance and magnitude of the immune response and the related factors correlated with SARS-CoV-2 vaccination need to be defined. Here, we enrolled a prospective cohort of 52 participants who received two doses of inactivated vaccines (BBIBP-CorV). Their serial plasma samples (n = 260) over 2 months were collected at five timepoints. We measured antibody responses (NAb, S-IgG and S-IgM) and routine blood parameter. NAb seroconversion occurred in 90.7% of vaccinated individuals and four typical NAb kinetic curves were observed. All of the participants who seroconverted after the first dose were females and had relatively high prevaccine estradiol levels. Moreover, those without seroconversion tended to have lower lymphocyte counts and higher serum SAA levels than those who experienced seroconversion. The NAb titers in young vaccine recipients had a significantly higher peak than those in elderly recipients. S-IgG and S-IgM dynamics were accompanied by similar trends in NAb. Here, we gained insight into the dynamic changes in NAbs and preliminarily explored the prevaccine blood parameters related to the kinetic subclasses, providing a reference for vaccination strategies.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vacinas contra COVID-19
/
COVID-19
Tipo de estudo:
Observational_studies
Limite:
Aged
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Female
/
Humans
Idioma:
En
Revista:
Front Cell Infect Microbiol
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China