2022
DOI: 10.1097/qad.0000000000003263
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Decay of coronavirus disease 2019 mRNA vaccine-induced immunity in people with HIV

Abstract: Current coronavirus disease 2019 (COVID-19) mRNA vaccines induce robust SARS-CoV-2-specific humoral and cellular responses in people with HIV (PWH). However, the rate of decay of effector immune responses has not been studied in these individuals. Here, we report a significant waning of antibody responses but persistent T-cell responses 6 months post vaccination in virally suppressed PWH with high CD4+ T-cell counts. These responses are comparable with those seen in healthy donors.

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Cited by 12 publications
(11 citation statements)
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“…Lastly, similarly to HIV-negative individuals [ 121 , 122 ], PLWH show waning antibody immunity (especially against VOCs), yet persistent T-cell responses 6 months post-vaccination [ 123 •], pointing to a potential role of vaccine-elicited cellular immune memory in ensuring a long-term protection.…”
Section: Immune Responses To Sars-cov-2 Vaccines In Plwhmentioning
confidence: 99%
See 1 more Smart Citation
“…Lastly, similarly to HIV-negative individuals [ 121 , 122 ], PLWH show waning antibody immunity (especially against VOCs), yet persistent T-cell responses 6 months post-vaccination [ 123 •], pointing to a potential role of vaccine-elicited cellular immune memory in ensuring a long-term protection.…”
Section: Immune Responses To Sars-cov-2 Vaccines In Plwhmentioning
confidence: 99%
“…[ 101 •] BNT162b2 or mRNA-1273 (2 doses) Prospective observational single-center cohort study (Spain) 94 PLWH, described according to CD4 + T-cell count strata: < 200/μL: 79.3% males; median age: 52 years (IQR: 40–56) > 500/μL: 80.6% males; median age: 51 years (IQR: 40–56) 33 HIV-negative controls: 18 (54.5%) males; median age: 53 years (IQR: 35–57) CD4 + T-cell strata: - < 200/μL: n = 58 - > 500/μL: n = 36 Undetectable plasma HIV-RNA: - CD4 + < 200/μL group: n = 47 (81%) - CD4 + > 500/μL group: n = 35 (100%) Individuals with known history of SARS-CoV-2 infection excluded Anti-S IgG and anti-RBD IgG (ELISA) Neutralizing antibody activity (neutralization assay) SARS-CoV-2 specific T-cells (ELISpot after stimulation of PBMCs with a pool of overlapping SARS-CoV-2 peptides) Lower anti-S and anti-RBD IgG levels in PLWH with CD4 + T-cell counts < 200/μL Neutralizing capacity and specific T-cell responses (against wild-type SARS-CoV-2 and VOCs like Alpha, Delta, Kappa) absent or reduced in a higher percentage of PLWH with CD4 + T-cell counts < 200/μL Woldemeskel et al . [ 123 •] PLWH: BNT162b2 (2 doses) HIV-negative controls: mRNA-1273 (2 doses) Prospective observational study (USA) 8 PLWH: age range: 41–60 years 25 HIV-negative controls: age range: 21–60 years Median CD4 + T-cell count: 1044/μL (IQR: 468–1420) All PLWH on cART 6 PLWH had plasma HIV-RNA < 20 copies/mL, while 2 PPLWH had low level viremia (49 and 52 copies/mL, respectively) Not part of study criteria Anti-S1 IgG (ELISA) ACE2-inhibiting antibodies (spike-ACE2 binding inhibition assay) SARS-CoV-2 specific T-cells (ELISpot after stimulation of PBMCs with a pool of overlapping SARS-CoV-2 spike protein peptides) Time-points: 2 weeks and 6 months after the second dose of vaccination Similar to HIV-negative controls, waning antibody responses (especially to VOCs) but persistent T-cell responses 6 months post vaccination in PLWH Frater et al . [ 105 ••] ChAdOx1-S (2 doses) Single-arm substudy of a phase 2/3 clinical trial (UK) 54 PLWH: 54 (100%) males; median age: 42.5 years (IQR: 37.5–49.8) 50 HIV-negative controls: 26 (52%) males, 24 (48%) females; median age: 38.5 years (IQR: 29.2–45.0) Median CD4 + T-cell count: 694/μL (IQR: 574–860) All PLWH on cART for at least 3 months Plasma HIV-RNA < 50 copies/mL in all participants Participants wit...…”
Section: Immune Responses To Sars-cov-2 Vaccines In Plwhmentioning
confidence: 99%
“…Of note, analogous results could be obtained for immunization with the vector-based vaccine AZD1222 [ 130 ]. Finally, T cell responses seem to be preserved up to six months after the second vaccine dose, albeit a slight decrease over time becomes evident in PLWH irrespective of the underlying vaccine platform [ 129 , 131 , 132 ].…”
Section: Sars-cov-2-specific T Cells In People Living With Hiv (Plwh)mentioning
confidence: 99%
“…In the general population, the effectiveness of two doses of mRNA vaccine wanes within 6 months [29,30]. The decay among PLWH was examined in a small study [31] that included eight PLWH and 25 healthy individuals. Six months after two doses of the vaccine, similar waning of antibody response was observed in both groups, while T-cell response persisted in both groups.…”
Section: Wanning Of Immunological Response Among People Living With H...mentioning
confidence: 99%