Humoral immune response following the inactivated quadrivalent influenza vaccination among HIV-infected and HIV-uninfected adults.
Vaccine
; 41(34): 4978-4985, 2023 07 31.
Article
em En
| MEDLINE
| ID: mdl-37394372
ABSTRACT
BACKGROUND:
A limited amount of information is available about the immunogenicity of the quadrivalent inactivated influenza vaccine among human immunodeficiency virus (HIV)-infected individuals, especially in low and middle-income countries (LMICs).METHODS:
HIV-infected adults and HIV-uninfected adults received a dose of quadrivalent inactivated influenza vaccine including strains of H1N1, H3N2, BV and BY. Enzyme-linked immunosorbent assay (ELISA) and hemagglutination-inhibition assay (HAI) were used to determine IgA, IgG antibody concentration and geometric mean titers (GMT) at day 0 and day 28, respectively. Associated factors contributing to seroconversion or GMT changes were analyzed using simple logistic regression model.RESULTS:
A total of 131 HIV-infected and 55 HIV-uninfected subjects were included in the study. In both HIV-infected and uninfected arms, IgG and IgA against influenza A and B all increased significantly at day 28 after receiving QIV (P < 0.001). GMTs of post-vaccination at day 28 showed that HIV-infected persons with CD4 + T cell counts ≤ 350 cells/mm3 were statistically less immunogenic to all strains of QIV than HIV-uninfected ones (P < 0.05). HIV-infected participants with CD4 + T cell counts ≤ 350 cells/mm3 were less likely to achieve seroconversion to QIV (H1N1, BY and BV) than HIV-uninfected individuals at day 28 after vaccination (P < 0.05). Compared with HIV-infected patients with baseline CD4 + T cell counts ≤ 350 cells/mm3, individuals with baseline CD4 + T cell counts > 350 cell/mm3 seemed more likely to generate antibody responses to H1N1 (OR2.65, 95 %CI 1.07-6.56) and BY (OR 3.43, 95 %CI 1.37-8.63), and showed a higher probability of seroconversion to BY (OR 3.59, 95 %CI 1.03-12.48). Compared with nadir CD4 + T cell count ≤ 350 cell/mm3, individuals with nadir CD4 + T cell count > 350 cell/mm3 showed a higher probability of seroconversion to H1N1(OR 3.15, 95 %CI 1.14-8.73).CONCLUSION:
Influenza vaccination of HIV-infected adults might be effective despite variable antibody responses. HIV-positive populations with CD4 + T cell counts ≤ 350 are less likely to achieve seroconversion. Further vaccination strategies could be developed for those with low CD4 T cell counts.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vacinas contra Influenza
/
Infecções por HIV
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Soropositividade para HIV
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Influenza Humana
/
Vírus da Influenza A Subtipo H1N1
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Humans
Idioma:
En
Revista:
Vaccine
Ano de publicação:
2023
Tipo de documento:
Article