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Kyaw MH, Spinardi J, Zhang L, Oh HML, Srivastava A. Evidence synthesis and pooled analysis of vaccine effectiveness for COVID-19 mRNA vaccine BNT162b2 as a heterologous booster after inactivated SARS-CoV-2 virus vaccines. Hum Vaccin Immunother 2023; 19:2165856. [PMID: 36727201 PMCID: PMC9980688 DOI: 10.1080/21645515.2023.2165856] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Introduction of primary COVID-19 vaccination has helped reduce severe disease and death caused by SARS-CoV-2 infection. Understanding the protection conferred by heterologous booster regimens informs alternative vaccination strategies that enable programmatic resilience and can catalyze vaccine confidence and coverage. Inactivated SARS-CoV-2 vaccines are among the most widely used vaccines worldwide. This review synthesizes the available evidence identified as of May 26, 2022, on the safety, immunogenicity, and effectiveness of a heterologous BNT162b2 (Pfizer-BioNTech) mRNA vaccine booster dose after an inactivated SARS-CoV-2 vaccine primary series, to help protect against COVID-19. Evidence showed that the heterologous BNT16b2 mRNA vaccine booster enhances immunogenicity and improves vaccine effectiveness against COVID-19, and no new safety concerns were identified with heterologous inactivated primary series with mRNA booster combinations.
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Affiliation(s)
- Moe H Kyaw
- Vaccine Medical Affairs, Emerging Markets, Pfizer Inc, Gaithersburg, MD, USA
| | - Julia Spinardi
- Vaccine Medical Affairs, Emerging Markets, Pfizer Inc, Sao Paulo, Brazil
| | - Ling Zhang
- Real World Evidence Analytics Center of Excellence, Boehringer Ingelheim, Ridgefield, CT, USA
| | - Helen May Lin Oh
- Department of Infectious Diseases, Changi General Hospital, Singapore
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Montero S, Urrunaga-Pastor D, Soto-Becerra P, Cvetkovic-Vega A, Guillermo-Roman M, Figueroa-Montes L, Sagástegui AA, Alvizuri-Pastor S, Contreras-Macazana RM, Apolaya-Segura M, Díaz-Vélez C, Maguiña JL. Humoral response after a BNT162b2 heterologous third dose of COVID-19 vaccine following two doses of BBIBP-CorV among healthcare personnel in Peru. Vaccine X 2023; 14:100311. [PMID: 37207103 PMCID: PMC10162476 DOI: 10.1016/j.jvacx.2023.100311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 04/14/2023] [Accepted: 04/30/2023] [Indexed: 05/21/2023] Open
Abstract
Background The inactivated virus vaccine, BBIBP-CorV, was principally distributed across low- and middle-income countries as primary vaccination strategy to prevent poor COVID-19 outcomes. Limited information is available regarding its effect on heterologous boosting. We aim to evaluate the immunogenicity and reactogenicity of a third booster dose of BNT162b2 following a double BBIBP-CorV regime. Methods We conducted a cross-sectional study among healthcare providers from several healthcare facilities of the Seguro Social de Salud del Perú - ESSALUD. We included participants two-dose BBIBP-CorV vaccinated who presented a three-dose vaccination card at least 21 days passed since the vaccinees received their third dose and were willing to provide written informed consent. Antibodies were determined using LIAISON® SARS-CoV-2 TrimericS IgG (DiaSorin Inc., Stillwater, USA). Factors potentially associated with immunogenicity, and adverse events, were considered. We used a multivariable fractional polynomial modeling approach to estimate the association between anti-SARS-CoV-2 IgG antibodies' geometric mean (GM) ratios and related predictors. Results We included 595 subjects receiving a third dose with a median (IQR) age of 46 [37], [54], from which 40% reported previous SARS-CoV-2 infection. The overall geometric mean (IQR) of anti-SARS-CoV-2 IgG antibodies was 8,410 (5,115 - 13,000) BAU/mL. Prior SARS-CoV-2 history and full/part-time in-person working modality were significantly associated with greater GM. Conversely, time from boosting to IgG measure was associated with lower GM levels. We found 81% of reactogenicity in the study population; younger age and being a nurse were associated with a lower incidence of adverse events. Conclusions Among healthcare providers, a booster dose of BNT162b2 following a full BBIBP-CorV regime provided high humoral immune protection. Thus, SARS-CoV-2 previous exposure and working in person displayed as determinants that increase anti-SARS-CoV-2 IgG antibodies.
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Affiliation(s)
- Stephanie Montero
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
| | - Diego Urrunaga-Pastor
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
- Unidad para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola (USIL), Lima, Peru
| | - Percy Soto-Becerra
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
- Universidad Continental, Huancayo, Perú
| | - Aleksandar Cvetkovic-Vega
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
- Facultad de Medicina Humana, Universidad Privada Antenor Orrego, Trujillo, Peru
| | - Martina Guillermo-Roman
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
| | | | | | | | | | - Moisés Apolaya-Segura
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
- Facultad de Medicina Humana, Universidad Privada Antenor Orrego, Trujillo, Peru
| | - Cristian Díaz-Vélez
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
- Facultad de Medicina Humana, Universidad Privada Antenor Orrego, Trujillo, Peru
| | - Jorge L. Maguiña
- Instituto de Evaluación de Tecnologías en Salud e Investigación - IETSI, ESSALUD, Lima, Peru
- Facultad de Ciencias de la Salud, Universidad Científica del Sur, Lima, Peru
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Gómez de la Torre JC, Hueda-Zavaleta M, Cáceres-DelAguila JA, Muro-Rojo C, Cruz-Escurra NDL, Benítes-Zapata VA. Humoral Response after a Fourth Dose with mRNA-1273 in Healthcare Workers with and without a History of SARS-CoV-2 Infection and Previously Vaccinated with Two Doses of BBIBP-CorV Plus BNT162b2 Vaccine. Vaccines (Basel) 2023; 11:vaccines11050894. [PMID: 37242998 DOI: 10.3390/vaccines11050894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 05/28/2023] Open
Abstract
There is limited information on the kinetics of the humoral response elicited by a fourth dose with a heterologous mRNA1273 booster in patients who previously received a third dose with BNT162b2 and two doses of BBIBP-CorV as the primary regimen. We conducted a prospective cohort study to assess the humoral response using Elecsys® anti-SARS-CoV-2 S (anti-S-RBD) of 452 healthcare workers (HCWs) in a private laboratory in Lima, Peru at 21, 120, 210, and 300 days after a third dose with a BNT162b2 heterologous booster in HCW previously immunized with two doses of BBIBP-CorV, depending on whether or not they received a fourth dose with the mRNA1273 heterologous vaccine and on the history of previous SARS infection -CoV-2. Of the 452 HCWs, 204 (45.13%) were previously infected (PI) with SARS-CoV-2, and 215 (47.57%) received a fourth dose with a heterologous mRNA-1273 booster. A total of 100% of HCWs presented positive anti-S-RBD 300 days after the third dose. In HCWs receiving a fourth dose, GMTs 2.3 and 1.6 times higher than controls were observed 30 and 120 days after the fourth dose. No statistically significant differences in anti-S-RBD titers were observed in those HCWs PI and NPI during the follow-up period. We observed that HCWs who received a fourth dose with the mRNA1273 and those previously infected after the third dose with BNT162b2 (during the Omicron wave) presented higher anti-S-RBD titers (5734 and 3428 U/mL, respectively). Further studies are required to determine whether patients infected after the third dose need a fourth dose.
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Affiliation(s)
| | - Miguel Hueda-Zavaleta
- Hospital III Daniel Alcides Carrión, Essalud, Calana Road, Km 6.5, Calana, Tacna 23000, Peru
- Facultad de Ciencias de la Salud, Universidad Privada de Tacna, Bolognesi Avenue Number 1177, Tacna 23003, Peru
| | | | - Cecilia Muro-Rojo
- Roe Clinical Laboratory, Dos de Mayo Avenue, 1741, San Isidro, Lima 15076, Peru
| | | | - Vicente A Benítes-Zapata
- Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, La Fontana Avenue 550, La Molina, Lima 15024, Peru
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J. Rodriguez-Morales A, Katterine Bonilla-Aldana D. Introductory Chapter: Lessons from SARS-CoV-2/COVID-19 after Two Years of Pandemic. Infect Dis (Lond) 2023. [DOI: 10.5772/intechopen.108769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
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Hueda-Zavaleta M, Gómez de la Torre JC, Cáceres-DelAguila JA, Muro-Rojo C, De La Cruz-Escurra N, Copaja-Corzo C, Aragón-Ayala CJ, Benítes-Zapata VA. Neutralizing Antibodies as Predictors of Vaccine Breakthrough Infection in Healthcare Workers Vaccinated with or without a Heterologous Booster Dose: A Cohort Study during the Third COVID-19 Wave in Peru. Vaccines (Basel) 2023; 11:vaccines11020447. [PMID: 36851324 PMCID: PMC9961465 DOI: 10.3390/vaccines11020447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/31/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
We evaluated neutralizing antibody (NAbs) levels as a protective factor against vaccine breakthrough infection (VBI) in healthcare workers (HCWs) during the third COVID-19 wave in Peru. This retrospective cohort study employed the information from a private laboratory in Lima (Peru) of HCW who received only two BBIBP-CorV vaccines or (additionally) a heterologous booster with BNT162b2. We evaluated the association between the VBI and the levels of NAbs at 21, 90, 180, and 210 days after the BBIBP-CorV second dose. NAbs were calculated with the cPass™ SARS-CoV-2 Neutralization Antibody Detection kit (surrogate virus neutralization test (sVNT)) and the Elecsys® anti-SARS-CoV-2 S Test. Of the 435 HCW evaluated, 31.72% had an infection previous to vaccination, 68.28% received a booster dose, and 23.21% had a VBI during the third wave. The variables associated with a lower risk of VBI were male sex (aRR: 0.43) and those who had (180 days after BBIBP-CorV inoculation) NAbs levels ≥ 60% (aRR: 0.58) and ≥90% (aRR: 0.59) on cPass™, and ≥500 with Elecsys® (aRR: 0.58). HCW whose NAbs persisted at higher levels six months after the BBIBP-CorV showed a lower risk of suffering from a VBI during the third COVID-19 wave.
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Affiliation(s)
- Miguel Hueda-Zavaleta
- Facultad de Ciencias de la Salud, Universidad Privada de Tacna, Tacna 23003, Peru
- Hospital III Daniel Alcides Carrión—Essalud Tacna, Tacna 23041, Peru
- Correspondence: (M.H.-Z.); (V.A.B.-Z.)
| | | | | | | | | | - Cesar Copaja-Corzo
- Facultad de Ciencias de la Salud, Universidad Científica del Sur, Lima 15842, Peru
| | - Carlos J. Aragón-Ayala
- Facultad de Medicina, Universidad Nacional de San Agustin de Arequipa, Arequipa 04000, Peru
| | - Vicente A. Benítes-Zapata
- Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima 15024, Peru
- Correspondence: (M.H.-Z.); (V.A.B.-Z.)
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One-Year Post-Vaccination Longitudinal Follow-Up of Quantitative SARS-CoV-2 Anti-Spike Total Antibodies in Health Care Professionals and Evaluation of Correlation with Surrogate Neutralization Test. Vaccines (Basel) 2023; 11:vaccines11020355. [PMID: 36851233 PMCID: PMC9966239 DOI: 10.3390/vaccines11020355] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 02/08/2023] Open
Abstract
Numerous vaccines have been generated to decrease the morbidity and mortality of COVID-19. This study aims to evaluate the immunogenicity of the heterologous boosts by BioNTech against homologous boosts by CoronaVac at three-month intervals in two health care worker (HCW) cohorts, with or without prior COVID-19, for one year post-vaccination. This is a prospective cohort study in which the humoral responses of 386 HCWs were followed-up longitudinally in six main groups according to their previous COVID-19 exposure and vaccination status. Anti-SARS-CoV-2 spike-RBD total antibody levels were measured and SARS-CoV-2 neutralization antibody (NAbs) responses against the ancestral Wuhan and the Omicron variant were evaluated comparatively using international standard serum for Wuhan and Omicron, as well as with the aid of a conversion tool. The anti-SARS-CoV-2 spike-RBD total Ab and Nab difference between with and without prior COVID-19, three months after two-dose primary vaccination with CoronaVac, was statistically significant (p = 0.001). In the subsequent follow-ups, this difference was not observed between the groups. Those previously infected (PI) and non-previously infected (NPI) groups receiving BioNTech as the third dose had higher anti-SARS-CoV-2 spike total Ab levels (14.2-fold and 17.4-fold, respectively, p = 0.001) and Nab responses (against Wuhan and Omicron) than those receiving CoronaVac. Ab responses after booster vaccination decreased significantly in all groups at the ninth-month follow-up (p < 0.05); however, Abs were still higher in all booster received groups than that in the primary vaccination. Abs were above the protective level at the twelfth-month measurement in the entire of the second BioNTech received group as the fourth dose of vaccination. In the one-year follow-up period, the increased incidence of COVID-19 in the groups vaccinated with two or three doses of CoronaVac compared with the groups vaccinated with BioNTech as a booster suggested that continuing the heterologous CoronaVac/BioNTech vaccination, revised according to current SARS-CoV-2 variants and with at least a six-month interval booster would be an effective and safe strategy for protection against COVID-19, particularly in health care workers.
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Evaluation of the Efficacy of BBIBP-CorV Inactivated Vaccine Combined with BNT62b2 mRNA Booster Vaccine. Diagnostics (Basel) 2023; 13:diagnostics13030556. [PMID: 36766663 PMCID: PMC9914066 DOI: 10.3390/diagnostics13030556] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES In this prospective study, SARS-CoV-2 spike protein specific total immunoglobulin (Ig) levels were analyzed before and after BNT162 b2 mRNA booster vaccination in individuals previously administered with two doses of BBIBP-CorV vaccine in comparison to immunized participants with three doses of BNT162 b2 vaccination. METHODS Sixty-one Caucasian volunteers (39 females, 22 males) vaccinated by BBIBP-CorV were included (mean age: 63.9 years). Sixty-one patients (41 females, 20 males) as controls were vaccinated with BNT162b2 (mean age: 59.9 years). Both groups received the third booster BNT162b2 vaccine. Total anti-SARS-CoV-2 S1-RBD Ig levels were measured by an immunoassay (Roche Diagnostics) and their calculated ratios after/before booster dose were compared between the two groups. RESULTS At baseline, significantly lower anti-SARS-CoV-2 S1-RBD total antibody levels were determined after initial immunization by two doses of inactivated BBIBP-CorV compared to BNT62b2 mRNA vaccine (p < 0.001). After BNT162b2 boosters, similarly high total Ig levels were detected in both the heterologous (27,195 [15,604-42,754] BAU/mL, p < 0.001) and the homologous booster cohort (24,492 [13,779-42,671] BAU/mL, p < 0.001) compared to baseline. Hence, the ratio of after/before total Ig levels was significantly higher with heterologous vs homologous immunization (p < 0.001). CONCLUSION To address the concept that basic BBIBP-CorV vaccination is not as effective as BNT162b, we analyzed the effect of heterologous vaccination with BNT162b2. Our results suggest that BNT162b2 can successfully boost the effects of two-dose BBIBP-CorV vaccination.
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Silva-Valencia J, Soto-Becerra P, Escobar-Agreda S, Fernandez-Navarro M, Elorreaga OA, Mayta-Tristán P, Mezones-Holguin E, Solari L. Relative vaccine effectiveness of the booster dose of COVID-19 vaccine for preventing death in individuals with a primary regimen based on the BBIBP-CorV, ChAdOx1-S, or BNT162b2 vaccines during the Omicron wave in Peru: A nested case-control study using national population data. Vaccine 2022; 40:6512-6519. [PMID: 36202642 PMCID: PMC9515342 DOI: 10.1016/j.vaccine.2022.09.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Studies have reported evidence about the effectiveness of a third dose with BNT162b2 for preventing hospitalization and death by COVID-19. However, there is little evidence regarding other primary vaccine schedules such as BBIBP-CorV and ChAdOx1-S. We estimated the relative vaccine effectiveness (RVE) of the booster dose versus the primary regimens of COVID-19 vaccines based on BBIBP-CorV, ChAdOx1-S, or BNT162b2 for preventing death during the Omicron wave in Peruvian adult people. METHODS We carried out a nested case-control study with a risk set sampling of controls using data from Peru between December 20, 2021, and February 20, 2022 (during the Omicron wave). Data on vaccination, COVID-19 tests and deaths were collected from national surveillance databases. We performed conditional logistic regression models to estimate the RVE on the adult population. In addition, we executed sub-group analysis per age group (18 to 59 years, and 60 years or more) and per primary regime (based on BNT162b2, BBIBP-CorV, or ChAdOx1-S). RESULTS Of the 11,188,332 people eligible to enter the study 1,974 met the case definition (death from COVID-19) and were matched to 9,183 controls. The overall RVE of a third dose to prevent death was 87.2% (84.2%-89.7%), which varied according to the primary regime (87.3% for BNT162b2, 82.0% for BBIPB-CorV-2, and 79.5% for ChAdOx-S). In older adults, the RVE was 87.1%, without significant variations according to the primary regime (86.1% for BNT162b2, 86.1 for BBIBP-CorV, and 82% for ChAdOx-S). CONCLUSIONS The booster) dose of vaccine against COVID-19 had a high RVE for preventing death by COVID-19 in the Peruvian population in all primary regimes of vaccines during the Omicron wave. This effect was consistent in people over 60 years of age, the group most vulnerable to die from this infection.
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Affiliation(s)
| | - Percy Soto-Becerra
- Instituto de Evaluación de Tecnologías Sanitarias e Investigación - IETSI, EsSalud, Lima, Peru,Centro de Excelencia en Investigaciones Económicas y Sociales en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | | | | | - Oliver A. Elorreaga
- Centro de Excelencia en Investigaciones Económicas y Sociales en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | - Percy Mayta-Tristán
- Dirección General de Investigación, Desarrollo e Innovación, Universidad Científica del Sur, Lima, Peru
| | - Edward Mezones-Holguin
- Centro de Excelencia en Investigaciones Económicas y Sociales en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | - Lely Solari
- Centro Nacional de Salud Pública, Instituto Nacional de Salud, Lima, Peru,Corresponding author
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Vargas-Herrera N, Fernández-Navarro M, Cabezudo NE, Soto-Becerra P, Solís-Sánchez G, Escobar-Agreda S, Silva-Valencia J, Pampa-Espinoza L, Bado-Pérez R, Solari L, Araujo-Castillo RV. Immunogenicity and reactogenicity of a third dose of BNT162b2 vaccine for COVID-19 after a primary regimen with BBIBP-CorV or BNT162b2 vaccines in Lima, Peru. PLoS One 2022; 17:e0268419. [PMID: 36251630 PMCID: PMC9576087 DOI: 10.1371/journal.pone.0268419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 09/25/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND The administration of a third (booster) dose of COVID-19 vaccines in Peru initially employed the BNT162b2 (Pfizer) mRNA vaccine. The national vaccination program started with healthcare workers (HCW) who received BBIBP-CorV (Sinopharm) vaccine as primary regimen and elderly people previously immunized with BNT162b2. This study evaluated the reactogenicity and immunogenicity of the "booster" dose in these two groups in Lima, Peru. METHODS We conducted a prospective cohort study, recruiting participants from November to December of 2021 in Lima, Peru. We evaluated immunogenicity and reactogenicity in HCW and elderly patients previously vaccinated with either two doses of BBIBP-CorV (heterologous regimen) or BTN162b2 (homologous regimen). Immunogenicity was measured by anti-SARS-CoV-2 IgG antibody levels immediately before boosting dose and 14 days later. IgG geometric means (GM) and medians were obtained, and modeled using ANCOVA and quantile regressions. RESULTS The GM of IgG levels increased significantly after boosting: from 28.5±5.0 AU/mL up to 486.6±1.2 AU/mL (p<0.001) which corresponds to a 17-fold increase. The heterologous vaccine regimen produced higher GM of post-booster anti-SARS-CoV-2 IgG levels, eliciting a 13% increase in the geometric mean ratio (95%CI: 1.02-1.27) and a median difference of 92.3 AU/ml (95%CI: 24.9-159.7). Both vaccine regimens were safe and well tolerated. Previous COVID-19 infection was also associated with higher pre and post-booster IgG GM levels. CONCLUSION Although both boosting regimens were highly immunogenic, two doses of BBIBP-CorV boosted with BTN162b2 produced a stronger IgG antibody response than the homologous BNT162b2 regimen in the Peruvian population. Additionally, both regimens were mildly reactogenic and well-tolerated.
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Affiliation(s)
| | | | - Nestor E. Cabezudo
- Measles and Rubella National Reference Laboratory, Centro Nacional de Salud Pública, Instituto Nacional de Salud, Lima, Peru
| | - Percy Soto-Becerra
- Instituto de Evaluación de Tecnologías en Salud e Investigación (IETSI), Seguro Social de Salud del Peru (ESSALUD), Lima, Peru
| | - Gilmer Solís-Sánchez
- Oficina General de Investigación y Transferencia Tecnológica, Instituto Nacional de Salud, Lima, Peru
| | | | | | | | - Ricardo Bado-Pérez
- Centro Nacional de Epidemiología, Prevención y Control de Enfermedades, Ministerio de Salud – Perú, Lima, Peru
| | - Lely Solari
- Centro Nacional de Salud Pública, Instituto Nacional de Salud, Lima, Peru
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Batchi-Bouyou AL, Djontu JC, Vouvoungui JC, Mfoutou Mapanguy CC, Lobaloba Ingoba L, Mougany JS, Boumpoutou KR, Diafouka-Kietela S, Ampa R, Ntoumi F. Assessment of neutralizing antibody responses after natural SARS-CoV-2 infection and vaccination in congolese individuals. BMC Infect Dis 2022; 22:610. [PMID: 35831798 PMCID: PMC9277981 DOI: 10.1186/s12879-022-07593-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 06/13/2022] [Indexed: 12/29/2022] Open
Abstract
Background Assessing immune responses after vaccination is part of the evaluation package of vaccine effectiveness in the real world. Regarding SARS-CoV-2, neutralizing antibody levels has been shown to be a good indicator of antibody immune response boosting. So far, limited data have been reported from Africa including in Central Africa. The objective of this study was to provide data on anti-S1 spike total IgG and neutralizing antibodies in vaccinated and non-vaccinated including naturally infected Congolese population during B.1.214.1 and B.1.617.2 variant waves. Methods Recruited patients were divided into 4 groups: (1) Naturally infected by the B.1.214.1 variant on January 2021 and followed up until September 2021. These patients have been vaccinated at month 07 and then followed up for 2 months post vaccination; (2) Naturally infected by the B.1.617.2 variant from June 2021; (3) unvaccinated SARS-CoV-2 individuals with no history of prior SARS-CoV-2 infection; (4) fully vaccinated individuals with sinopharm/BBIP-CorV or Janssen/Ad26.COV2.S. SARS-CoV-2 was detected by qRT-PCR and sequenced using Next-Generation Sequencing. ELISA method was used for detecting IgG, and neutralizing Antibody against SARS-CoV-2 antigens using commercial neutralizing assay. Results Individuals infected by the B.1214.1 variant elicited consistently high IgG titers at 02, 03 and 06 months. Two months post vaccination with BBIP-CorV, participants showed a significant increase by × 2.5 fold (p < 0.0001) of total IgG and X1.5 fold for neutralizing antibody capacity. This study showed that natural infection with B1.617.2 (delta) variant was more immunogenic compared to those being infected with B1.214.2 variant. We found a significantly higher concentration in anti-SARS-CoV-2 IgG (p < 0.0002) and antibodies neutralization capacity (P < 0.0001) in fully vaccinated compared to unvaccinated participants. Two months post vaccination, individuals who received Janssen/Ad26.COV2.S presented higher (p = 0.01) total IgG to spike protein compared to BBIP-CorV. Conclusion Both natural infection and vaccination with BBIP-CorV and Janssen/Ad26.COV2.S induced antibody response in Congolese population. In addition, Janssen/Ad26.COV2.S was more immunogenic than Sinopharm/BBIP-CorV. There is a need to investigate the duration of these antibodies both in previously infected and naive vaccinated Congolese to allow public heath stakeholders to make evidence-based decision on vaccine schedule for the Congolese population.
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Affiliation(s)
- Armel Landry Batchi-Bouyou
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo.,Faculty of Sciences and Techniques, University Marien Ngouabi, Brazzaville, Republic of Congo
| | - Jean Claude Djontu
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo
| | | | - Claujens Chastel Mfoutou Mapanguy
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo.,Faculty of Sciences and Techniques, University Marien Ngouabi, Brazzaville, Republic of Congo
| | - Line Lobaloba Ingoba
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo.,Faculty of Sciences and Techniques, University Marien Ngouabi, Brazzaville, Republic of Congo
| | - Jiré Séphora Mougany
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo.,Faculty of Sciences and Techniques, University Marien Ngouabi, Brazzaville, Republic of Congo
| | - Kamal Rauchelvy Boumpoutou
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo
| | - Steve Diafouka-Kietela
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo
| | - Raoul Ampa
- Faculty of Sciences and Techniques, University Marien Ngouabi, Brazzaville, Republic of Congo
| | - Francine Ntoumi
- Fondation Congolaise pour la Recherche Médicale (FCRM), Villa D6, Campus OMS, Djoué, Brazzaville, Republic of Congo. .,Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
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Ciniselli CM, Lecchi M, Figini M, Melani CC, Daidone MG, Morelli D, Zito E, Apolone G, Verderio P. COVID-19 Vaccination in Health Care Workers in Italy: A Literature Review and a Report from a Comprehensive Cancer Center. Vaccines (Basel) 2022; 10:vaccines10050734. [PMID: 35632490 PMCID: PMC9146113 DOI: 10.3390/vaccines10050734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Abstract
The coronavirus disease 2019 pandemic still represents a global public health emergency, despite the availability of different types of vaccines that reduced the number of severe cases, the hospitalization rate and mortality. The Italian Vaccine Distribution Plan identified healthcare workers (HCWs) as the top-priority category to receive access to a vaccine and different studies on HCWs have been implemented to clarify the duration and kinetics of antibody response. The aim of this paper is to perform a literature review across a total of 44 studies of the serologic response to COVID-19 vaccines in HCWs in Italy and to report the results obtained in a prospective longitudinal study implemented at the Fondazione IRCCS Istituto Nazionale Tumori (INT) of Milan on 1565 HCWs. At INT we found that 99.81% of the HCWs developed an antibody response one month after the second dose. About six months after the first serology evaluation, 100% of the HCWs were still positive to the antibody, although we observed a significant decrease in its levels. Overall, our literature review results highlight a robust antibody response in most of the HCWs after the second vaccination dose. These figures are also confirmed in our institutional setting seven months after the completion of the cycle of second doses of vaccination.
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Affiliation(s)
- Chiara Maura Ciniselli
- Bioinformatics and Biostatistics Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.M.C.); (M.L.)
| | - Mara Lecchi
- Bioinformatics and Biostatistics Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.M.C.); (M.L.)
| | - Mariangela Figini
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Cecilia C. Melani
- Scientific Directorate, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.C.M.); (M.G.D.); (G.A.)
| | - Maria Grazia Daidone
- Scientific Directorate, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.C.M.); (M.G.D.); (G.A.)
| | - Daniele Morelli
- Laboratory Medicine, Department of Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Emanuela Zito
- ICT, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Giovanni Apolone
- Scientific Directorate, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.C.M.); (M.G.D.); (G.A.)
| | - Paolo Verderio
- Bioinformatics and Biostatistics Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy; (C.M.C.); (M.L.)
- Correspondence:
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