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Roa CC, de Los Reyes MRA, Plennevaux E, Smolenov I, Hu B, Gao F, Ilagan H, Ambrosino D, Siber G, Clemens R, Han HH. SCB-2019 protein vaccine as heterologous booster of neutralizing activity against SARS-CoV-2 Omicron variants after immunization with other COVID-19 vaccines. Hum Vaccin Immunother 2024; 20:2301632. [PMID: 38206168 DOI: 10.1080/21645515.2023.2301632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/31/2023] [Indexed: 01/12/2024] Open
Abstract
We assessed the non-inferiority of homologous boosting compared with heterologous boosting with the recombinant protein vaccine, SCB-2019, in adults previously immunized with different COVID-19 vaccines. Three equal cohorts (N ~ 420) of Philippino adults (18-80 years) previously immunized with Comirnaty, CoronaVac or Vaxzevria COVID-19 vaccines were randomized 1:1 to receive homologous or heterologous (SCB-2019) boosters. Neutralizing antibodies against prototype SARS-CoV-2 (Wuhan-Hu-1) were measured in all participants and against Delta variant and Omicron sub-lineages in subsets (30‒50 per arm) 15 days after boosting. Participants recorded solicited adverse events for 7 days and unsolicited and serious adverse events until Day 60. Prototype SARS-CoV-2 neutralizing responses on Day 15 after SCB-2019 were statistically non-inferior to homologous Vaxzevria boosters, superior to CoronaVac, but lower than homologous Comirnaty. Neutralizing responses against Delta and Omicron BA.1, BA.2, BA.4 and BA.5 variants after heterologous SCB-2019 were higher than homologous CoronaVac or Vaxzevria, but lower than homologous Comirnaty. Responses against Omicron BF.7, BQ.1.1.3, and XBB1.5 following heterologous SCB-2019 were lower than after homologous Comirnaty booster but significantly higher than after Vaxzevria booster. SCB-2019 reactogenicity was similar to CoronaVac or Vaxzevria, but lower than Comirnaty; most frequent events were mild/moderate injection site pain, headache and fatigue. No vaccine-related serious adverse events were reported. Heterologous SCB-2019 boosting was well tolerated and elicited neutralizing responses against all tested SARS-COV-2 viruses including Omicron BA.1, BA.2, BA.4, BA.5, BF.7, BQ.1.1.3, and XBB1.5 sub-lineages that were non-inferior to homologous boosting with CoronaVac or Vaxzevria, but not homologous Comirnaty booster.
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Affiliation(s)
- Camilo C Roa
- Department of Physiology, Philippine General Hospital, University of the Philippines, Manila, Philippines
| | | | - Eric Plennevaux
- Clinical Development, Clover Biopharmaceuticals, Cambridge, UK
| | - Igor Smolenov
- Clinical Development, Clover Biopharmaceuticals, Boston, MA, USA
| | - Branda Hu
- Clinical Development, Clover Biopharmaceuticals, Boston, MA, USA
| | - Faith Gao
- Clinical Development, Clover Biopharmaceuticals, Boston, MA, USA
| | - Hannalyn Ilagan
- Clinical Development, Clover Biopharmaceuticals, Boston, MA, USA
| | | | | | - Ralf Clemens
- Global Research in Infectious Diseases, Rio de Janeiro, Brazil
| | - Htay Htay Han
- Clinical Development, Clover Biopharmaceuticals, Boston, MA, USA
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Tobias J, Steinberger P, Wilkinson J, Klais G, Kundi M, Wiedermann U. SARS-CoV-2 Vaccines: The Advantage of Mucosal Vaccine Delivery and Local Immunity. Vaccines (Basel) 2024; 12:795. [PMID: 39066432 PMCID: PMC11281395 DOI: 10.3390/vaccines12070795] [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: 06/12/2024] [Revised: 07/10/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Immunity against respiratory pathogens is often short-term, and, consequently, there is an unmet need for the effective prevention of such infections. One such infectious disease is coronavirus disease 19 (COVID-19), which is caused by the novel Beta coronavirus SARS-CoV-2 that emerged around the end of 2019. The World Health Organization declared the illness a pandemic on 11 March 2020, and since then it has killed or sickened millions of people globally. The development of COVID-19 systemic vaccines, which impressively led to a significant reduction in disease severity, hospitalization, and mortality, contained the pandemic's expansion. However, these vaccines have not been able to stop the virus from spreading because of the restricted development of mucosal immunity. As a result, breakthrough infections have frequently occurred, and new strains of the virus have been emerging. Furthermore, SARS-CoV-2 will likely continue to circulate and, like the influenza virus, co-exist with humans. The upper respiratory tract and nasal cavity are the primary sites of SARS-CoV-2 infection and, thus, a mucosal/nasal vaccination to induce a mucosal response and stop the virus' transmission is warranted. In this review, we present the status of the systemic vaccines, both the approved mucosal vaccines and those under evaluation in clinical trials. Furthermore, we present our approach of a B-cell peptide-based vaccination applied by a prime-boost schedule to elicit both systemic and mucosal immunity.
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Affiliation(s)
- Joshua Tobias
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Peter Steinberger
- Division of Immune Receptors and T Cell Activation, Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria;
| | - Joy Wilkinson
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Gloria Klais
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Kundi
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria;
| | - Ursula Wiedermann
- Institute of Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
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Adnan N, Haq MA, Akter S, Sajal SMSA, Islam MF, Mou TJ, Jamiruddin MR, Jubyda FT, Islam MS, Tuli JF, Liza SM, Hossain S, Islam Z, Ahmed S, Khandker SS, Hossain R, Ahmed MF, Khondoker MU, Azmuda N, Parvez MAK. Antibody Response after Homologous and Heterologous Prime-Boost COVID-19 Vaccination in a Bangladeshi Residential University Cohort. Vaccines (Basel) 2024; 12:482. [PMID: 38793733 PMCID: PMC11125736 DOI: 10.3390/vaccines12050482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/14/2024] [Accepted: 04/22/2024] [Indexed: 05/26/2024] Open
Abstract
COVID-19 vaccination strategies, including heterologous prime-boost regimens and additional booster doses, aim to optimize immune responses. However, seroepidemiological studies on immune responses to different COVID-19 vaccine types and schedules remain limited. This study investigated antibody levels following homologous and heterologous prime-and-boost COVID-19 vaccination in Bangladesh. In a cohort of 606 participants who received first/second/booster doses of vaccines (AstraZeneca, Moderna, Pfizer-BioNTech, and Sinopharm), anti-spike IgG and anti-nucleocapsid IgG levels were measured. Antibody titer variations with respect to age, gender, intervals between doses, and prior infection status were analyzed. mRNA vaccines elicited the highest antibody levels after homologous and heterologous boosting. The AstraZeneca booster resulted in a sharp titer decline rate of ~0.04 units per day. Second or booster vaccine doses significantly increased antibody levels, especially in males (p < 0.05). Older age correlated with higher titers, likely reflecting previous infection, which was further confirmed by the elevation of anti-nucleocapsid IgG levels. About 95.5% of non-Sinopharm recipients were anti-nucleocapsid IgG positive, suggesting prior exposure exceeding self-reported infections (12.5%). mRNA and heterologous COVID-19 boosting enhances humoral immunity over homologous prime-boost vector/inactivated vaccination. However, waning immunity merits further investigation across vaccine platforms.
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Affiliation(s)
- Nihad Adnan
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | | | - Salma Akter
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | - S. M. Shafiul Alam Sajal
- Gonoshasthaya-RNA Biotech Limited, Dhaka 1205, Bangladesh; (S.M.S.A.S.); (S.S.K.); (R.H.); (M.U.K.)
| | - Md. Fokhrul Islam
- Institute of Quantitative Biology, Biochemistry and Biotechnology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FF, UK;
- Department of Pharmacy, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Taslin Jahan Mou
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
- Institute of Quantitative Biology, Biochemistry and Biotechnology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FF, UK;
| | | | - Fatema Tuz Jubyda
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | - Md. Salequl Islam
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
- School of Optometry and Vision Science, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jamsheda Ferdous Tuli
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | - Syeda Moriam Liza
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | - Sharif Hossain
- Department of Biotechnology & Genetic Engineering, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.H.); (Z.I.)
| | - Zinia Islam
- Department of Biotechnology & Genetic Engineering, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.H.); (Z.I.)
| | - Sohel Ahmed
- Department of Biochemistry & Molecular Biology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh;
| | - Shahad Saif Khandker
- Gonoshasthaya-RNA Biotech Limited, Dhaka 1205, Bangladesh; (S.M.S.A.S.); (S.S.K.); (R.H.); (M.U.K.)
| | - Rubel Hossain
- Gonoshasthaya-RNA Biotech Limited, Dhaka 1205, Bangladesh; (S.M.S.A.S.); (S.S.K.); (R.H.); (M.U.K.)
| | - Md. Firoz Ahmed
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | - Mohib Ullah Khondoker
- Gonoshasthaya-RNA Biotech Limited, Dhaka 1205, Bangladesh; (S.M.S.A.S.); (S.S.K.); (R.H.); (M.U.K.)
- Gonoshasthaya Samaj Vittik Medical College, Savar, Dhaka 1344, Bangladesh
| | - Nafisa Azmuda
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
| | - Md. Anowar Khasru Parvez
- Department of Microbiology, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh; (S.A.); (T.J.M.); (F.T.J.); (M.S.I.); (J.F.T.); (S.M.L.); (M.F.A.); (N.A.)
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Qian J, Zhang S, Wang F, Li J, Zhang J. What makes SARS-CoV-2 unique? Focusing on the spike protein. Cell Biol Int 2024; 48:404-430. [PMID: 38263600 DOI: 10.1002/cbin.12130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/25/2023] [Accepted: 01/02/2024] [Indexed: 01/25/2024]
Abstract
Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) seriously threatens public health and safety. Genetic variants determine the expression of SARS-CoV-2 structural proteins, which are associated with enhanced transmissibility, enhanced virulence, and immune escape. Vaccination is encouraged as a public health intervention, and different types of vaccines are used worldwide. However, new variants continue to emerge, especially the Omicron complex, and the neutralizing antibody responses are diminished significantly. In this review, we outlined the uniqueness of SARS-CoV-2 from three perspectives. First, we described the detailed structure of the spike (S) protein, which is highly susceptible to mutations and contributes to the distinct infection cycle of the virus. Second, we systematically summarized the immunoglobulin G epitopes of SARS-CoV-2 and highlighted the central role of the nonconserved regions of the S protein in adaptive immune escape. Third, we provided an overview of the vaccines targeting the S protein and discussed the impact of the nonconserved regions on vaccine effectiveness. The characterization and identification of the structure and genomic organization of SARS-CoV-2 will help elucidate its mechanisms of viral mutation and infection and provide a basis for the selection of optimal treatments. The leaps in advancements regarding improved diagnosis, targeted vaccines and therapeutic remedies provide sound evidence showing that scientific understanding, research, and technology evolved at the pace of the pandemic.
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Affiliation(s)
- Jingbo Qian
- Department of Laboratory Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Branch of National Clinical Research Center for Laboratory Medicine, Nanjing, China
| | - Shichang Zhang
- Department of Clinical Laboratory Medicine, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Fang Wang
- Department of Laboratory Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Branch of National Clinical Research Center for Laboratory Medicine, Nanjing, China
| | - Jinming Li
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
- National Center for Clinical Laboratories, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, China
| | - Jiexin Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
- Branch of National Clinical Research Center for Laboratory Medicine, Nanjing, China
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5
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Milani A, Akbari E, Pordanjani PM, Jamshidi F, Ghayoumi S, Sadeghi SA, Bolhassani A. Immunostimulatory effects of Hsp70 fragments and Hsp27 in design of novel HIV-1 vaccine formulations. HIV Med 2024; 25:276-290. [PMID: 37936563 DOI: 10.1111/hiv.13576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Heat shock proteins (HSPs) as an adjuvant induce antigen-specific immunity through facilitating antigen presentation and stimulating T cells. In this study, the immunostimulatory properties of two major fragments of Hsp70 (N-Hsp70(aa 1-387) with ATPase property and C-Hsp70 (aa 508-641) with peptide-binding capacity) and the full length of Hsp27 as vaccine adjuvants were evaluated to boost HIV-1 Nef antigen-specific immunity in both in vitro and in vivo experiments. METHODS At first, the nanoparticles harbouring DNA fusion constructs (i.e. N-Hsp70-Nef, C-Hsp70-Nef and Hsp27-Nef) complexed with HIV Rev (34-50) cell-penetrating peptide were generated to deliver DNA into the cells. Then, the recombinant Nef, Hsp27-Nef, N-Hsp70-Nef and C-Hsp70-Nef proteins were generated in E.coli expression system. Next, the immunostimulatory properties of these fusion constructs were evaluated in both in vitro and in vivo studies. Finally, the secretion of main cytokines from single-cycle replicable (SCR) HIV-1 virion-exposed splenocytes was investigated. RESULTS Our data showed that the stable and non-toxic DNA/Rev nanoparticles could successfully deliver the genes of interest into the cells. Moreover, higher secretion of antibodies and cytokines was detected in mice receiving the Hsp-Nef constructs than in mice receiving Nef antigen. The C-Hsp70 was also superior for inducing Nef-specific Th1 and CTL immunity compared with N-Hsp70 and Hsp27. The T-cell activity was maintained in the SCR-exposed splenocytes, especially the splenocytes of mice receiving the C-Hsp70-Nef regimen. CONCLUSION Altogether, these findings demonstrate the significance of Hsps as enhancers of antigen-specific immunity. Notably, the C-Hsp70 region showed better adjuvant properties for inducing cellular immunity in the improvement of HIV-1 therapeutic vaccines.
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Affiliation(s)
- Alireza Milani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Elahe Akbari
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | | | - Fateme Jamshidi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
- Iranian Comprehensive Hemophilia Care Center, Tehran, Iran
| | - Shahrzad Ghayoumi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
- Iranian Comprehensive Hemophilia Care Center, Tehran, Iran
| | - Seyed Amir Sadeghi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
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Castro VT, Chardin H, Amorim dos Santos J, Barra GB, Castilho GR, Souza PM, Magalhães PDO, Acevedo AC, Guerra ENS. Detection of anti-SARS-CoV-2 salivary antibodies in vaccinated adults. Front Immunol 2023; 14:1296603. [PMID: 38022522 PMCID: PMC10661372 DOI: 10.3389/fimmu.2023.1296603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Since the introduction of efficient anti-SARS-CoV-2 vaccines, the detection of antibodies becomes useful for immunological monitoring and COVID-19 control. Therefore, this longitudinal study aimed to evaluate the detection of SARS-CoV-2 antibodies in the serum and saliva of COVID-19-vaccinated adults. The study included 13 not vaccinated and 35 vaccinated participants with two doses of CoronaVac (Sinovac/Butantan) vaccine who subsequently received BNT162b2 (Pfizer-BioNTech) vaccine as a booster dose. Vaccinated participants donated saliva and serum in three different time points. Enzyme-linked immunosorbent assay was used for antibody detection. In our results, the serum neutralizing antibodies (NAb) were detected in 34/35 samples after second dose and in 35/35 samples one and five months after the booster dose. In saliva, NAb were detected in 30/35 samples after second dose and in 35/35 of samples one and five months after the booster dose. IgA was detected in 19/34 saliva samples after second dose, in 18/35 one month after the booster and in 30/35 five months after. IgG in saliva was detected in 1/34 samples after second dose, 33/35 samples one month after the booster dose and in 20/35 five months after. A strong correlation was found between IgG and neutralizing activity in saliva, and salivary IgA would be a sign of recent exposure to the virus. In conclusion, saliva can be suitable for monitoring antibodies anti-SARS-CoV-2 after vaccination. Heterologous vaccination contributed to increase anti-SARS-CoV-2 antibodies in the Brazilian health context. Complementary studies with large groups are mandatory to conclude the interest in following mucosal immunity.
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Affiliation(s)
- Vitória Tavares Castro
- Laboratory of Oral Histopathology, Faculty of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Hélène Chardin
- Department of Analytical, Bioanalytical Sciences and Miniaturization, École Supérieure de Physique et de Chimie Industrielles (ESPCI) de la Ville de Paris, Paris, France
- Unité de Formation et de Recherche d’Odontologie, Université Paris Cité, Paris, France
| | - Juliana Amorim dos Santos
- Laboratory of Oral Histopathology, Faculty of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | | | | | - Paula Monteiro Souza
- Laboratory of Natural Products, Faculty of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | | | - Ana Carolina Acevedo
- Laboratory of Oral Histopathology, Faculty of Health Sciences, University of Brasilia, Brasília, DF, Brazil
| | - Eliete Neves Silva Guerra
- Laboratory of Oral Histopathology, Faculty of Health Sciences, University of Brasilia, Brasília, DF, Brazil
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Eybpoosh S, Biglari A, Sorouri R, Ashrafian F, Sadat Larijani M, Verez-Bencomo V, Toledo-Romani ME, Valenzuela Silva C, Salehi-Vaziri M, Dahmardeh S, Doroud D, Banifazl M, Mostafavi E, Bavand A, Ramezani A. Immunogenicity and safety of heterologous boost immunization with PastoCovac Plus against COVID-19 in ChAdOx1-S or BBIBP-CorV primed individuals. PLoS Pathog 2023; 19:e1011744. [PMID: 37910480 PMCID: PMC10619776 DOI: 10.1371/journal.ppat.1011744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 10/10/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND This study aimed at evaluation and comparison of PastoCovac Plus protein-subunit vaccine in parallel with ChAdOx1-S (AstraZeneca) and BBIBP-CorV (Sinopharm) in primarily vaccinated volunteers with two doses of ChAdOx1-S or BBIBP-CorV. MATERIALS AND METHODS 194 volunteers enrolled the study who were previously primed with 2 doses of ChAdOx1-S or BBIBP-CorV vaccines. They were divided into two heterologous regimens receiving a third dose of PastoCovac Plus, and two parallel homologous groups receiving the third dose of BBIBP-CorV or ChAdOx1-S. Serum samples were obtained just before and 4 weeks after booster dose. Anti-spike IgG and neutralizing antibodies were quantified and the conventional live-virus neutralization titer, (cVNT50) assay was done against Omicron BA.5 variant. Moreover, the adverse events data were recorded after receiving booster doses. RESULTS ChAdOx1-S/PastoCovac Plus group reached 73.0 units increase in anti-Spike IgG rise compared to the ChAdOx1-S/ ChAdOx1-S (P: 0.016). No significant difference was observed between the two groups regarding neutralizing antibody rise (P: 0.256), indicating equivalency of both booster types. Adjusting for baseline titers, the BBIBP-CorV/PastoCovac Plus group showed 135.2 units increase (P<0.0001) in anti-Spike IgG, and 3.1 (P: 0.008) unit increase in mean rise of neutralizing antibodies compared to the homologous group. Adjustment for COVID-19 history, age, underlying diseases, and baseline antibody titers increased the odds of anti-Spike IgG fourfold rise both in the ChAdOx1-S (OR: 1.9; P: 0.199) and BBIBP CorV (OR: 37.3; P< 0.0001) heterologous groups compared to their corresponding homologous arms. The odds of neutralizing antibody fourfold rise, after adjustment for the same variables, was 2.4 (P: 0.610) for the ChAdOx1-S heterologous group and 5.4 (P: 0.286) for the BBIBP CorV heterologous groups compared to their corresponding homologous groups. All the booster types had the potency to neutralize BA.5 variant with no significant difference. The highest rate of adverse event incidence was recorded for ChAdOx1-S homologous group. CONCLUSIONS PastoCovac Plus booster application in primed individuals with BBIBP-CorV or ChAdOx1-S successfully increased specific antibodies' levels without any serious adverse events. This vaccine could be administrated in the heterologous regimen to effectively boost humoral immune responses.
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Affiliation(s)
- Sana Eybpoosh
- Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
| | - Alireza Biglari
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Rahim Sorouri
- IPI Directorate, Pasteur Institute of Iran, Tehran, Iran
- Department of Microbiology, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ashrafian
- Clinical Research Department, Pasteur Institute of Iran, Tehran, Iran
| | | | | | | | | | | | - Sarah Dahmardeh
- Vaccination Department, Pasteur Institute of Iran, Tehran, Iran
| | - Delaram Doroud
- Quality Control Department, Production and research Complex, Pasteur Institute of Iran, Tehran, Iran
| | - Mohammad Banifazl
- Iranian Society for Support of Patients with Infectious Disease, Tehran, Iran
| | - Ehsan Mostafavi
- Department of Epidemiology and Biostatistics, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Tehran, Iran
| | - Anahita Bavand
- Clinical Research Department, Pasteur Institute of Iran, Tehran, Iran
| | - Amitis Ramezani
- Clinical Research Department, Pasteur Institute of Iran, Tehran, Iran
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8
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Priyadharshini A, Begum J, Ali SI, Pattnaik S, Sharma D, Lalitha DL. Sputnik V vaccine perception and hesitancy in a tertiary health care centre transformed to Covid-19 vaccine centre: A case study. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2023; 12:366. [PMID: 38144010 PMCID: PMC10743924 DOI: 10.4103/jehp.jehp_322_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/06/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND Sputnik V vaccine was approved in India in April 2021 to tackle the pandemic situation. However, there was lack of information on the effects, side effects, and peoples' perception toward it. The present case study aims to evaluate the vaccine coverage, the awareness, and perception toward it and compare the adverse effects after each dose. MATERIALS AND METHODS A unique case study was conducted in a sample of 200 participants comparing 2 groups of population who took first and second dose of Sputnik V vaccine during June to November 2021. The data were collected by a prevalidated questionnaire, follow-up telephonic interviews focused on knowledge, awareness, side effects of vaccine, and analyzed using descriptive statistics such as frequency, percentages, mean, and standard deviation. RESULTS The vaccine coverage for first and second doses were 98.3% and 96.5%, respectively. The mean age of the participant was 29 + 9.5 years and majority 68.5% were males. Seventeen percent experienced the S/E for the vaccine with 9.5% from second dose. There were usual side effects; however, it was more after second dose of vaccination. Friends and healthcare workers were the main source of information (33.5%) and motivation (43%). Majority (73.5%) were aware of the side effects. Forty three point five percent took vaccine attributed to its protective role, availability, and peer pressure. There was no significant association between type of doses and side effects of the respective doses of vaccine. CONCLUSION The vaccine coverage was >90%. Participants were well aware of the vaccine and side effects which were more in second dose. However, there was no significant difference between the two doses of vaccine.
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Affiliation(s)
- A Priyadharshini
- Community Medicine, Great Eastern Medical School and Hospital, Srikakulam, Andhra Pradesh, India
| | - Jarina Begum
- Community Medicine, Manipal Tata Medical College, Manipal Academy of Higher Education, Jamshedpur, Jharkhand, India
| | - Syed I. Ali
- Community Medicine, Manipal Tata Medical College, Manipal Academy of Higher Education, Jamshedpur, Jharkhand, India
| | - Satyajit Pattnaik
- Community Medicine, Great Eastern Medical School and Hospital, Srikakulam, Andhra Pradesh, India
| | - Dhananjaya Sharma
- Community Medicine, Great Eastern Medical School and Hospital, Srikakulam, Andhra Pradesh, India
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Al-Qaisi TS, Abumsimir B. Vaccination strategies, the power of the unmatched double hits. Future Sci OA 2023; 9:FSO887. [PMID: 37752921 PMCID: PMC10518827 DOI: 10.2144/fsoa-2023-0090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 06/12/2023] [Indexed: 09/28/2023] Open
Affiliation(s)
- Talal S Al-Qaisi
- Department of Medical Laboratory Sciences, Pharmacological & Diagnostic Research Centre (PDRC), Faculty of Allied Medical Sciences, Al-Ahliyya Amman University (AAU), Amman, 19328, Jordan
| | - Berjas Abumsimir
- Department of Medical Laboratory Sciences, Pharmacological & Diagnostic Research Centre (PDRC), Faculty of Allied Medical Sciences, Al-Ahliyya Amman University (AAU), Amman, 19328, Jordan
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10
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Samoud S, Bettaieb J, Gdoura M, Kharroubi G, Ben Ghachem F, Zamali I, Ben Hmid A, Salem S, Gereisha AA, Dellagi M, Hogga N, Gharbi A, Baccouche A, Gharbi M, Khemissi C, Akili G, Slama W, Chaieb N, Galai Y, Louzir H, Triki H, Ben Ahmed M. Immunogenicity of Mix-and-Match CoronaVac/BNT162b2 Regimen versus Homologous CoronaVac/CoronaVac Vaccination: A Single-Blinded, Randomized, Parallel Group Superiority Trial. Vaccines (Basel) 2023; 11:1329. [PMID: 37631897 PMCID: PMC10459159 DOI: 10.3390/vaccines11081329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/07/2023] [Accepted: 07/07/2023] [Indexed: 08/29/2023] Open
Abstract
(1) Background: This study aimed to compare the immunogenicity of the mix-and-match CoronaVac/BNT162b2 vaccination to the homologous CoronaVac/CoronaVac regimen. (2) Methods: We conducted a simple-blinded randomized superiority trial to measure SARS-CoV-2 neutralization antibodies and anti-spike receptor binding domain (RBD) IgG concentrations in blood samples of participants who had received the first dose of CoronaVac vaccine followed by a dose of BNT162b2 or CoronaVac vaccine. The primary endpoint for immunogenicity was the serum-neutralizing antibody level with a percentage of inhibition at 90% at 21-35 days after the boost. A difference of 25% between groups was considered clinically relevant. (3) Results: Among the 240 eligible participants, the primary endpoint data were available for 100 participants randomly allocated to the mix-and-match group versus 99 participants randomly allocated to the homologous dose group. The mix-and-match regimen elicited significantly higher levels of neutralizing antibodies (median level of 96%, interquartile range (IQR) (95-97) versus median level of 94%, IQR (81-96) and anti-spike IgG antibodies (median level of 13,460, IQR (2557-29,930) versus median level of 1190, IQR (347-4964) compared to the homologous group. Accordingly, the percentage of subjects with a percentage of neutralizing antibodies > 90% was significantly higher in the mix-and-match group (90.0%) versus the homologous (60.6%). Interestingly, no severe events were reported within 30 days after the second dose of vaccination in both groups. (4) Conclusions: Our data showed the superiority of the mix-and-match CoronaVac/BNT162b2 vaccination compared to the CoronaVac/CoronaVac regimen in terms of immunogenicity, thus constituting a proof-of-concept study supporting the use of inactivated vaccines in a mix-and-match strategy while ensuring good immunogenicity and safety.
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Affiliation(s)
- Samar Samoud
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Medicine of Sousse, University of Sousse, Sousse 4000, Tunisia
| | - Jihene Bettaieb
- Department of Medical Epidemiology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (J.B.); (G.K.); (S.S.); (M.D.); (A.G.); (A.B.)
- Faculty of Medicine of Tunis, University of Tunis, Tunis 1002, Tunisia
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Mariem Gdoura
- Department of Clinical Virology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (M.G.); (N.H.); (M.G.); (C.K.)
- Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Ghassen Kharroubi
- Department of Medical Epidemiology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (J.B.); (G.K.); (S.S.); (M.D.); (A.G.); (A.B.)
- Faculty of Medicine of Tunis, University of Tunis, Tunis 1002, Tunisia
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Feriel Ben Ghachem
- Vaccination Center of Ariana City, Ariana Regional Health Directorate, Ariana 2080, Tunisia; (F.B.G.); (G.A.); (W.S.); (N.C.)
| | - Imen Zamali
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Medicine of Tunis, University of Tunis, Tunis 1002, Tunisia
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Ahlem Ben Hmid
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Medicine of Tunis, University of Tunis, Tunis 1002, Tunisia
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Sadok Salem
- Department of Medical Epidemiology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (J.B.); (G.K.); (S.S.); (M.D.); (A.G.); (A.B.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Ahmed Adel Gereisha
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Medicine of Sousse, University of Sousse, Sousse 4000, Tunisia
| | - Mongi Dellagi
- Department of Medical Epidemiology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (J.B.); (G.K.); (S.S.); (M.D.); (A.G.); (A.B.)
| | - Nahed Hogga
- Department of Clinical Virology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (M.G.); (N.H.); (M.G.); (C.K.)
| | - Adel Gharbi
- Department of Medical Epidemiology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (J.B.); (G.K.); (S.S.); (M.D.); (A.G.); (A.B.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Amor Baccouche
- Department of Medical Epidemiology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (J.B.); (G.K.); (S.S.); (M.D.); (A.G.); (A.B.)
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Manel Gharbi
- Department of Clinical Virology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (M.G.); (N.H.); (M.G.); (C.K.)
- Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Chadha Khemissi
- Department of Clinical Virology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (M.G.); (N.H.); (M.G.); (C.K.)
- Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Ghada Akili
- Vaccination Center of Ariana City, Ariana Regional Health Directorate, Ariana 2080, Tunisia; (F.B.G.); (G.A.); (W.S.); (N.C.)
| | - Wissem Slama
- Vaccination Center of Ariana City, Ariana Regional Health Directorate, Ariana 2080, Tunisia; (F.B.G.); (G.A.); (W.S.); (N.C.)
| | - Nabila Chaieb
- Vaccination Center of Ariana City, Ariana Regional Health Directorate, Ariana 2080, Tunisia; (F.B.G.); (G.A.); (W.S.); (N.C.)
| | - Yousr Galai
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia
| | - Hechmi Louzir
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Medicine of Tunis, University of Tunis, Tunis 1002, Tunisia
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
| | - Henda Triki
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
- Department of Clinical Virology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (M.G.); (N.H.); (M.G.); (C.K.)
| | - Melika Ben Ahmed
- Department of Clinical Immunology, Pasteur Institute of Tunis, Tunis 1002, Tunisia; (S.S.); (I.Z.); (A.B.H.); (A.A.G.); (Y.G.); (H.L.)
- Faculty of Medicine of Tunis, University of Tunis, Tunis 1002, Tunisia
- Laboratory of Transmission, Control and Immunobiology of Infections (LR11IPT02), Institut Pasteur de Tunis, University of Tunis El Manar, Tunis 1068, Tunisia;
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Tukhvatulin AI, Dolzhikova IV, Dzharullaeva AS, Grousova DM, Kovyrshina AV, Zubkova OV, Zorkov ID, Iliukhina AA, Shelkov AY, Erokhova AS, Popova O, Ozharovskaia TA, Zrelkin DI, Izhaeva FM, Shcheblyakov DV, Esmagambetov IB, Tokarskaya EA, Nikitenko NA, Lubenets NL, Khadorich EA, Gushchin VA, Borzakova SN, Vlasova AV, Osmanov IM, Gorev VV, Naroditsky BS, Logunov DY, Gintsburg AL. Safety and immunogenicity of rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine against SARS-CoV-2 in healthy adolescents: an open-label, non-randomized, multicenter, phase 1/2, dose-escalation study. Front Immunol 2023; 14:1228461. [PMID: 37600800 PMCID: PMC10432829 DOI: 10.3389/fimmu.2023.1228461] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/11/2023] [Indexed: 08/22/2023] Open
Abstract
To protect young individuals against SARS-CoV-2 infection, we conducted an open-label, prospective, non-randomised dose-escalation Phase 1/2 clinical trial to evaluate the immunogenicity and safety of the prime-boost "Sputnik V" vaccine administered at 1/10 and 1/5 doses to adolescents aged 12-17 years. The study began with the vaccination of the older cohort (15-to-17-year-old participants) with the lower (1/10) dose of vaccine and then expanded to the whole group (12-to-17-year-old participants). Next, 1/5 dose was used according to the same scheme. Both doses were well tolerated by all age groups. No serious or severe adverse events were detected. Most of the solicited adverse reactions were mild. No significant differences in total frequencies of adverse events were registered between low and high doses in age-pooled groups (69.6% versus 66.7%). In contrast, the 1/5 dose induced significantly higher humoral and T cell-mediated immune responses than the 1/10 dose. The 1/5 vaccine dose elicited higher antigen-binding (both S and RBD-specific) as well as virus-neutralising antibody titres at the maximum of response (day 42), also resulting in a statistically significant difference at a distanced timepoint (day 180) compared to the 1/10 vaccine dose. Higher dose resulted in increased cross-neutralization of Delta and Omicron variants. Clinical Trial Registration ClinicalTrials.gov, NCT04954092, LP-007632.
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Affiliation(s)
- Amir I. Tukhvatulin
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Inna V. Dolzhikova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Alina S. Dzharullaeva
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Daria M. Grousova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Anna V. Kovyrshina
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Olga V. Zubkova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Ilya D. Zorkov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Anna A. Iliukhina
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Artem Y. Shelkov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Alina S. Erokhova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Olga Popova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Tatiana A. Ozharovskaia
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Denis I. Zrelkin
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Fatima M. Izhaeva
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Dmitry V. Shcheblyakov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Ilias B. Esmagambetov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elisaveta A. Tokarskaya
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Natalia A. Nikitenko
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Nadezhda L. Lubenets
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elizaveta A. Khadorich
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Vladimir A. Gushchin
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Svetlana N. Borzakova
- Children’s City Clinical Hospital named after Z. A. Bashlyaeva, Moscow City Health Department, Moscow, Russia
| | - Anna V. Vlasova
- Morozov Children’s City Clinical Hospital, Moscow Health Department, Moscow, Russia
| | - Ismail M. Osmanov
- Children’s City Clinical Hospital named after Z. A. Bashlyaeva, Moscow City Health Department, Moscow, Russia
| | - Valerii V. Gorev
- Morozov Children’s City Clinical Hospital, Moscow Health Department, Moscow, Russia
| | - Boris S. Naroditsky
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Denis Y. Logunov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
- Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Alexander L. Gintsburg
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya”, Ministry of Health of the Russian Federation, Moscow, Russia
- Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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Serra N, Andriolo M, Butera I, Mazzola G, Sergi CM, Fasciana TMA, Giammanco A, Gagliano MC, Cascio A, Di Carlo P. A Serological Analysis of the Humoral Immune Responses of Anti-RBD IgG, Anti-S1 IgG, and Anti-S2 IgG Levels Correlated to Anti-N IgG Positivity and Negativity in Sicilian Healthcare Workers (HCWs) with Third Doses of the mRNA-Based SARS-CoV-2 Vaccine: A Retrospective Cohort Study. Vaccines (Basel) 2023; 11:1136. [PMID: 37514952 PMCID: PMC10384738 DOI: 10.3390/vaccines11071136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/07/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND With SARS-CoV-2 antibody tests on the market, healthcare providers must be confident that they can use the results to provide actionable information to understand the characteristics and dynamics of the humoral response and antibodies (abs) in SARS-CoV-2-vaccinated patients. In this way, the study of the antibody responses of healthcare workers (HCWs), a population that is immunocompetent, adherent to vaccination, and continuously exposed to different virus variants, can help us understand immune protection and determine vaccine design goals. METHODS We retrospectively evaluated antibody responses via multiplex assays in a sample of 538 asymptomatic HCWs with a documented complete vaccination cycle of 3 doses of mRNA vaccination and no previous history of infection. Our sample was composed of 49.44% males and 50.56% females, with an age ranging from 21 to 71 years, and a mean age of 46.73 years. All of the HCWs' sera were collected from April to July 2022 at the Sant'Elia Hospital of Caltanissetta to investigate the immunologic responses against anti-RBD, anti-S1, anti-S2, and anti-N IgG abs. RESULTS A significant difference in age between HCWs who were positive and negative for anti-N IgG was observed. For anti-S2 IgG, a significant difference between HCWs who were negative and positive compared to anti-N IgG was observed only for positive HCWs, with values including 10 (U/mL)-100 (U/mL); meanwhile, for anti-RBD IgG and anti-S1 IgG levels, there was only a significant difference observed for positive HCWs with diluted titers. For the negative values of anti-N IgG, among the titer dilution levels of anti-RBD, anti-S1, and anti-S2 IgG, the anti-S2 IgG levels were significantly lower than the anti-RBD and anti-S1 levels; in addition, the anti-S1 IgG levels were significantly lower than the anti-RBD IgG levels. For the anti-N IgG positive levels, only the anti-S2 IgG levels were significantly lower than the anti-RBD IgG and anti-S1 IgG levels. Finally, a logistic regression analysis showed that age and anti-S2 IgG were negative and positive predictors of anti-N IgG levels, respectively. The analysis between the vaccine type and mixed mRNA combination showed higher levels of antibodies in mixed vaccinated HCWs. This finding disappeared in the anti-N positive group. CONCLUSIONS Most anti-N positive HCWs showed antibodies against the S2 domain and were young subjects. Therefore, the authors suggest that including the anti-SARS-CoV-2-S2 in antibody profiles can serve as a complementary testing approach to qRT-PCR for the early identification of asymptomatic infections in order to reduce the impact of potential new SARS-CoV-2 variants. Our serological investigation on the type of mRNA vaccine and mixed mRNA vaccines shows that future investigations on the serological responses in vaccinated asymptomatic patients exposed to previous infection or reinfection are warranted for updated vaccine boosters.
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Affiliation(s)
- Nicola Serra
- Department of Public Health, University Federico II of Naples, 80131 Napoli, Italy
| | - Maria Andriolo
- Clinical Pathology Laboratory, Provincial Health Authority of Caltanissetta, 93100 Caltanissetta, Italy
| | - Ignazio Butera
- Degree Course in Medicine and Surgery, Medical Scholl of Hypatia, University of Palermo, 93100 Caltanissetta, Italy
| | - Giovanni Mazzola
- Infectious Disease Unit, Provincial Health Authority of Caltanissetta, 93100 Caltanissetta, Italy
| | - Consolato Maria Sergi
- Department of Pathology and Laboratory Medicine, University of Ottawa, 401 Smyth Road, Ottawa, ON K1H 8L1, Canada
| | - Teresa Maria Assunta Fasciana
- Department of Health Promotion, Maternal-Childhood, Internal Medicine of Excellence "G. D'Alessandro", University of Palermo, 90127 Palermo, Italy
| | - Anna Giammanco
- Department of Health Promotion, Maternal-Childhood, Internal Medicine of Excellence "G. D'Alessandro", University of Palermo, 90127 Palermo, Italy
| | - Maria Chiara Gagliano
- Infectious Disease Unit, Department of Health Promotion, Maternal-Childhood, Internal Medicine of Excellence "G. D'Alessandro", University of Palermo, 90127 Palermo, Italy
| | - Antonio Cascio
- Infectious Disease Unit, Department of Health Promotion, Maternal-Childhood, Internal Medicine of Excellence "G. D'Alessandro", University of Palermo, 90127 Palermo, Italy
| | - Paola Di Carlo
- Infectious Disease Unit, Department of Health Promotion, Maternal-Childhood, Internal Medicine of Excellence "G. D'Alessandro", University of Palermo, 90127 Palermo, Italy
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Park SK, Choe YJ, Jang EJ, Kim RK, Lee SW, Kwon GY, Shin J, Choi SY, Jeong MJ, Park YJ. Effectiveness of Heterologous COVID-19 Vaccine Booster in Korean Elderly Population, 2022. J Korean Med Sci 2023; 38:e143. [PMID: 37191847 DOI: 10.3346/jkms.2023.38.e143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/21/2023] [Indexed: 05/17/2023] Open
Abstract
We conducted a cohort study to assess vaccine effectiveness (VE) of coronavirus disease 2019 vaccine combinations on severe acute respiratory syndrome coronavirus 2 critical infection and death among elderly population in Korea. From January to August 2022, VE against death for 4 doses mRNA recipients was 96.1%, whereas 1-dose viral vector + 3-dose mRNA recipients had VE of 90.8%.
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Affiliation(s)
| | - Young June Choe
- Korea University Anam Hospital and Allergy and Immunology Center, Korea University, Seoul, Korea
| | - Eun Jung Jang
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Ryu Kyung Kim
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Sang-Won Lee
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Geun-Yong Kwon
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Jeeyeon Shin
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Sang-Yoon Choi
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Mi Jin Jeong
- Korea Disease Control and Prevention Agency, Cheongju, Korea
| | - Young-Joon Park
- Korea Disease Control and Prevention Agency, Cheongju, Korea.
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14
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Corominas J, Garriga C, Prenafeta A, Moros A, Cañete M, Barreiro A, González-González L, Madrenas L, Güell I, Clotet B, Izquierdo-Useros N, Raïch-Regué D, Gallemí M, Blanco J, Pradenas E, Trinité B, Prado JG, Blanch-Lombarte O, Pérez-Caballero R, Plana M, Esteban I, Pastor-Quiñones C, Núñez-Costa X, Taleb RA, McSkimming P, Soriano A, Nava J, Anagua JO, Ramos R, Lluch RM, Comes AC, Romero SO, Gomez XM, Sans-Pola C, Moltó J, Benet S, Bailón L, Arribas JR, Borobia AM, Parada JQ, Navarro-Pérez J, Forner Giner MJ, Lucas RO, Jiménez MDMV, Compán SO, Alvarez-Mon M, Troncoso D, Arana-Arri E, Meijide S, Imaz-Ayo N, García PM, de la Villa Martínez S, Fernández SR, Prat T, Torroella È, Ferrer L. Safety and immunogenicity of the protein-based PHH-1V compared to BNT162b2 as a heterologous SARS-CoV-2 booster vaccine in adults vaccinated against COVID-19: a multicentre, randomised, double-blind, non-inferiority phase IIb trial. THE LANCET REGIONAL HEALTH. EUROPE 2023; 28:100613. [PMID: 37131861 PMCID: PMC10102678 DOI: 10.1016/j.lanepe.2023.100613] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 05/04/2023]
Abstract
Background A SARS-CoV-2 protein-based heterodimer vaccine, PHH-1V, has been shown to be safe and well-tolerated in healthy young adults in a first-in-human, Phase I/IIa study dose-escalation trial. Here, we report the interim results of the Phase IIb HH-2, where the immunogenicity and safety of a heterologous booster with PHH-1V is assessed versus a homologous booster with BNT162b2 at 14, 28 and 98 days after vaccine administration. Methods The HH-2 study is an ongoing multicentre, randomised, active-controlled, double-blind, non-inferiority Phase IIb trial, where participants 18 years or older who had received two doses of BNT162b2 were randomly assigned in a 2:1 ratio to receive a booster dose of vaccine-either heterologous (PHH-1V group) or homologous (BNT162b2 group)-in 10 centres in Spain. Eligible subjects were allocated to treatment stratified by age group (18-64 versus ≥65 years) with approximately 10% of the sample enrolled in the older age group. The primary endpoints were humoral immunogenicity measured by changes in levels of neutralizing antibodies (PBNA) against the ancestral Wuhan-Hu-1 strain after the PHH-1V or the BNT162b2 boost, and the safety and tolerability of PHH-1V as a boost. The secondary endpoints were to compare changes in levels of neutralizing antibodies against different variants of SARS-CoV-2 and the T-cell responses towards the SARS-CoV-2 spike glycoprotein peptides. The exploratory endpoint was to assess the number of subjects with SARS-CoV-2 infections ≥14 days after PHH-1V booster. This study is ongoing and is registered with ClinicalTrials.gov, NCT05142553. Findings From 15 November 2021, 782 adults were randomly assigned to PHH-1V (n = 522) or BNT162b2 (n = 260) boost vaccine groups. The geometric mean titre (GMT) ratio of neutralizing antibodies on days 14, 28 and 98, shown as BNT162b2 active control versus PHH-1V, was, respectively, 1.68 (p < 0.0001), 1.31 (p = 0.0007) and 0.86 (p = 0.40) for the ancestral Wuhan-Hu-1 strain; 0.62 (p < 0.0001), 0.65 (p < 0.0001) and 0.56 (p = 0.003) for the Beta variant; 1.01 (p = 0.92), 0.88 (p = 0.11) and 0.52 (p = 0.0003) for the Delta variant; and 0.59 (p ≤ 0.0001), 0.66 (p < 0.0001) and 0.57 (p = 0.0028) for the Omicron BA.1 variant. Additionally, PHH-1V as a booster dose induced a significant increase of CD4+ and CD8+ T-cells expressing IFN-γ on day 14. There were 458 participants who experienced at least one adverse event (89.3%) in the PHH-1V and 238 (94.4%) in the BNT162b2 group. The most frequent adverse events were injection site pain (79.7% and 89.3%), fatigue (27.5% and 42.1%) and headache (31.2 and 40.1%) for the PHH-1V and the BNT162b2 groups, respectively. A total of 52 COVID-19 cases occurred from day 14 post-vaccination (10.14%) for the PHH-1V group and 30 (11.90%) for the BNT162b2 group (p = 0.45), and none of the subjects developed severe COVID-19. Interpretation Our interim results from the Phase IIb HH-2 trial show that PHH-1V as a heterologous booster vaccine, when compared to BNT162b2, although it does not reach a non-inferior neutralizing antibody response against the Wuhan-Hu-1 strain at days 14 and 28 after vaccination, it does so at day 98. PHH-1V as a heterologous booster elicits a superior neutralizing antibody response against the previous circulating Beta and the currently circulating Omicron BA.1 SARS-CoV-2 variants in all time points assessed, and for the Delta variant on day 98 as well. Moreover, the PHH-1V boost also induces a strong and balanced T-cell response. Concerning the safety profile, subjects in the PHH-1V group report significantly fewer adverse events than those in the BNT162b2 group, most of mild intensity, and both vaccine groups present comparable COVID-19 breakthrough cases, none of them severe. Funding HIPRA SCIENTIFIC, S.L.U.
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Affiliation(s)
- Júlia Corominas
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | - Carme Garriga
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | | | - Alexandra Moros
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | - Manuel Cañete
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | | | | | - Laia Madrenas
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | - Irina Güell
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | - Bonaventura Clotet
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
- Infectious Diseases and Immunity, Faculty of Medicine, Universitat de Vic-Universitat Central de Catalunya (UVic-UCC), Carrer de la Sagrada Família, 7, 08500, Vic, Spain
| | - Nuria Izquierdo-Useros
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
| | - Dàlia Raïch-Regué
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
| | - Marçal Gallemí
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
- Infectious Diseases and Immunity, Faculty of Medicine, Universitat de Vic-Universitat Central de Catalunya (UVic-UCC), Carrer de la Sagrada Família, 7, 08500, Vic, Spain
- Germans Trias i Pujol Research Institute (IGTP), Carretera de Canyet, s/n, Badalona, Spain
| | - Edwards Pradenas
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
| | - Benjamin Trinité
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
| | - Julia G Prado
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
- Germans Trias i Pujol Research Institute (IGTP), Carretera de Canyet, s/n, Badalona, Spain
| | - Oscar Blanch-Lombarte
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
| | - Raúl Pérez-Caballero
- IrsiCaixa AIDS Research Institute, Carretera de Canyet, s/n, Can Ruti Campus, 08916, Badalona, Spain
| | - Montserrat Plana
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ del Rosselló, 149, 08036, Barcelona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
| | - Ignasi Esteban
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ del Rosselló, 149, 08036, Barcelona, Spain
| | - Carmen Pastor-Quiñones
- AIDS Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C/ del Rosselló, 149, 08036, Barcelona, Spain
| | - Xavier Núñez-Costa
- Veristat, LLC, Barcelona, Spain
- Veristat, LLC, Toronto, Canada
- Veristat, LLC, Pickmere, UK
| | - Rachel Abu Taleb
- Veristat, LLC, Barcelona, Spain
- Veristat, LLC, Toronto, Canada
- Veristat, LLC, Pickmere, UK
| | - Paula McSkimming
- Veristat, LLC, Barcelona, Spain
- Veristat, LLC, Toronto, Canada
- Veristat, LLC, Pickmere, UK
| | - Alex Soriano
- Hospital Clínic of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C. de Villarroel, 170, 08036, Barcelona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
| | - Jocelyn Nava
- Hospital Clínic of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C. de Villarroel, 170, 08036, Barcelona, Spain
| | - Jesse Omar Anagua
- Hospital Clínic of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), C. de Villarroel, 170, 08036, Barcelona, Spain
| | - Rafel Ramos
- Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Biomedical Research Institute, Girona (IdIBGi), Catalan Institute of Health, Carrer del Dr. Castany, s/n, 17190, Salt, Girona, Spain
- Department of Medical Sciences, School of Medicine, University of Girona, Plaça de Sant Domènec, 3, 17004, Girona, Spain
| | - Ruth Martí Lluch
- Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Biomedical Research Institute, Girona (IdIBGi), Catalan Institute of Health, Carrer del Dr. Castany, s/n, 17190, Salt, Girona, Spain
- Department of Medical Sciences, School of Medicine, University of Girona, Plaça de Sant Domènec, 3, 17004, Girona, Spain
| | - Aida Corpes Comes
- Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Biomedical Research Institute, Girona (IdIBGi), Catalan Institute of Health, Carrer del Dr. Castany, s/n, 17190, Salt, Girona, Spain
| | - Susana Otero Romero
- Hospital Universitari Vall d'Hebron, Pg. de la Vall d'Hebron, 119, 08035, Barcelona, Spain
- Unitat Docent Vall d'Hebron, Universitat Autònoma de Barcelona, Plaça Cívica, 08193, Bellaterra, Barcelona, Spain
- Department of Neurology/Neuroimmunology, Centro de Esclerosis Múltiple de Catalunya (Cemcat), Hospital Universitari Vall d'Hebron, Vall d'Hebron Barcelona Hospital Campus, Pg. de la Vall d'Hebron, 119, 08035, Barcelona, Spain
| | - Xavier Martinez Gomez
- Hospital Universitari Vall d'Hebron, Pg. de la Vall d'Hebron, 119, 08035, Barcelona, Spain
- Unitat Docent Vall d'Hebron, Universitat Autònoma de Barcelona, Plaça Cívica, 08193, Bellaterra, Barcelona, Spain
| | - Carla Sans-Pola
- Hospital Universitari Vall d'Hebron, Pg. de la Vall d'Hebron, 119, 08035, Barcelona, Spain
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Plaça Cívica, 08193, Bellaterra, Barcelona, Spain
- Clinical Pharmacology Research Group, Vall d'Hebron Institut de Recerca, Pg. de la Vall d'Hebron, 119, 08035, Barcelona, Spain
| | - José Moltó
- Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
| | - Susana Benet
- Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, Spain
| | - Lucía Bailón
- Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet, s/n, Badalona, Spain
| | - Jose R Arribas
- Infectious Diseases Unit, Internal Medicine Department, La Paz University Hospital, IdiPAZ, C. de Pedro Rico, 6, 28029, Madrid, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
| | - Alberto M Borobia
- Infectious Diseases Unit, Internal Medicine Department, La Paz University Hospital, IdiPAZ, C. de Pedro Rico, 6, 28029, Madrid, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029, Madrid, Spain
- Spanish Clinical Research Network - SCReN, Spain
| | - Javier Queiruga Parada
- Infectious Diseases Unit, Internal Medicine Department, La Paz University Hospital, IdiPAZ, C. de Pedro Rico, 6, 28029, Madrid, Spain
- Spanish Clinical Research Network - SCReN, Spain
| | - Jorge Navarro-Pérez
- Hospital Clínico Universitario Valencia, Av. de Blasco Ibáñez, 17, 46010, València, Spain
| | | | - Rafael Ortí Lucas
- Hospital Clínico Universitario Valencia, Av. de Blasco Ibáñez, 17, 46010, València, Spain
| | | | - Salvador Oña Compán
- Hospital Regional Universitario de Málaga, Av. de Carlos Haya, 84, 29010, Málaga, Spain
| | - Melchor Alvarez-Mon
- Hospital Universitario Príncipe de Asturias, Av. Principal de la Universidad, s/n, 28805, Alcalá de Henares, Madrid, Spain
| | - Daniel Troncoso
- Hospital Universitario Príncipe de Asturias, Av. Principal de la Universidad, s/n, 28805, Alcalá de Henares, Madrid, Spain
| | - Eunate Arana-Arri
- Scientific Coordination, Biocruces Bizkaia HRI, Osakidetza, Cruces Plaza, 48903, Barakaldo, Bizkaia, Spain
| | - Susana Meijide
- Scientific Coordination, Biocruces Bizkaia HRI, Osakidetza, Cruces Plaza, 48903, Barakaldo, Bizkaia, Spain
| | - Natale Imaz-Ayo
- Scientific Coordination, Biocruces Bizkaia HRI, Osakidetza, Cruces Plaza, 48903, Barakaldo, Bizkaia, Spain
| | - Patricia Muñoz García
- Instituto de Investigación Sanitaria Hospital Gregorio Marañón, C. del Dr. Esquerdo, 46, 28007, Madrid, Spain
- CIBER Enfermedades Respiratorias- CIBERES (CB06/06/0058), Madrid, Spain
| | - Sofía de la Villa Martínez
- Instituto de Investigación Sanitaria Hospital Gregorio Marañón, C. del Dr. Esquerdo, 46, 28007, Madrid, Spain
| | - Sara Rodríguez Fernández
- Instituto de Investigación Sanitaria Hospital Gregorio Marañón, C. del Dr. Esquerdo, 46, 28007, Madrid, Spain
| | - Teresa Prat
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | - Èlia Torroella
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
| | - Laura Ferrer
- HIPRA, Avinguda de la Selva, 135, 17170, Amer, Girona, Spain
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Fu JYL, Pukhari MH, Bador MK, Sam IC, Chan YF. Humoral and T Cell Immune Responses against SARS-CoV-2 after Primary and Homologous or Heterologous Booster Vaccinations and Breakthrough Infection: A Longitudinal Cohort Study in Malaysia. Viruses 2023; 15:v15040844. [PMID: 37112825 PMCID: PMC10146761 DOI: 10.3390/v15040844] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Vaccine efficacy against SARS-CoV-2 could be compromised by the emergence of SARS-CoV-2 variants and it is important to study how it impacts the booster vaccination regime. We investigated the humoral and T cell responses longitudinally in vaccinated uninfected (n = 25) and post-COVID-19 individuals (n = 8), and those who had received a BNT162b2 booster following complete two-doses regimes of either BNT162b2 (homologous) (n = 14) or ChAdOx1-S (heterologous) (n = 15) vaccines, by means of a SARS-CoV-2 pseudovirus neutralization test and QuantiFERON SARS-CoV-2 assay. Vaccinated post-COVID-19 individuals showed higher neutralizing antibodies with longer durability against SARS-CoV-2 wild type (WT) and Omicron spikes, but demonstrated similar declining T cell responses compared to the uninfected vaccinated. Two doses of BNT162b2 induced higher neutralizing antibodies against WT and T cell responses than ChAdOx1-S for six months. The BNT162b2 booster confers a greater humoral response against WT, but a similar cross-neutralizing antibody against Omicron and T cell responses in the homologous booster group compared to the heterologous booster group. Breakthrough infection in the homologous booster group (n = 11) significantly increased the neutralizing antibody, but T cell responses remained low. Our data may impact government public health policy regarding the administration of mix-and-match vaccines, where both vaccination regimes can be employed should there be shortages of certain vaccines.
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Affiliation(s)
- Jolene Yin Ling Fu
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (J.Y.L.F.); (M.H.P.); (M.K.B.); (I.-C.S.)
| | - Muhammad Harith Pukhari
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (J.Y.L.F.); (M.H.P.); (M.K.B.); (I.-C.S.)
| | - Maria Kahar Bador
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (J.Y.L.F.); (M.H.P.); (M.K.B.); (I.-C.S.)
| | - I-Ching Sam
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (J.Y.L.F.); (M.H.P.); (M.K.B.); (I.-C.S.)
- Department of Medical Microbiology, University Malaya Medical Centre, Kuala Lumpur 59100, Malaysia
| | - Yoke Fun Chan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia; (J.Y.L.F.); (M.H.P.); (M.K.B.); (I.-C.S.)
- Correspondence:
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16
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Deguchi H, Sakamoto A, Nakamura N, Okabe Y, Miura Y, Iida T, Yoshimura M, Haga N, Nabeshima S, Masutani K. Antibody acquisition after second and third SARS-CoV-2 vaccinations in Japanese kidney transplant patients: a prospective study. Clin Exp Nephrol 2023; 27:574-582. [PMID: 36914824 PMCID: PMC10010649 DOI: 10.1007/s10157-023-02334-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 02/27/2023] [Indexed: 03/14/2023]
Abstract
BACKGROUND Kidney transplant patients have lower antibody acquisition after SARS-CoV-2 vaccination. The efficacy of vaccines in Japanese kidney transplant patients with specific characteristics, such as predominant living-donor, ABO-incompatible kidney transplant, and low-dose immunosuppression, requires verification. METHODS We conducted a prospective study to estimate anti-SARS-CoV-2 antibody levels in 105 kidney transplant patients and 57 controls. Blood samples were obtained before vaccination, 1, 3, and 6 months after second vaccination, and 1 month after third vaccination. We investigated antibody acquisition rates, antibody levels, and factors associated with antibody acquisition. RESULTS One month after second vaccination, antibody acquisition was 100% in the controls but only 36.7% in the kidney transplant group (P < 0.001). Antibody levels in positive kidney transplant patients were also lower than in the controls (median, 4.9 arbitrary units vs 106.4 arbitrary units, respectively, P < 0.001). Years after kidney transplant (odds ratio 1.107, 95% confidence interval 1.012-1.211), ABO-incompatible kidney transplant (odds ratio 0.316, 95% confidence interval 0.101-0.991) and mycophenolate mofetil use (odds ratio 0.177, 95% confidence interval 0.054-0.570) were significant predictors for antibody acquisition after second vaccination. After third vaccination, antibody positivity in the kidney transplant group increased to 75.3%, and antibody levels in positive patients were 71.7 arbitrary units. No factors were associated with de novo antibody acquisition. CONCLUSIONS In Japanese kidney transplant patients, years after kidney transplant, ABO-incompatible kidney transplant and mycophenolate mofetil use were predictors for antibody acquisition after second vaccination. Third vaccination improves antibody status even in patients who were seronegative after the second vaccination.
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Affiliation(s)
- Hidetaka Deguchi
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan
| | - Atsuhiko Sakamoto
- Department of General Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Nobuyuki Nakamura
- Department of Urology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Yasuhiro Okabe
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshifumi Miura
- Department of General Surgery, Hara-Sanshin Hospital, Fukuoka, Japan
| | | | - Michinobu Yoshimura
- Department of Microbiology and Immunology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Nobuhiro Haga
- Department of Urology, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Shigeki Nabeshima
- Department of General Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Kosuke Masutani
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-Ku, Fukuoka, 814-0180, Japan.
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Wang SY, Liu WQ, Li YQ, Li JX, Zhu FC. A China-developed adenovirus vector-based COVID-19 vaccine: review of the development and application of Ad5-nCov. Expert Rev Vaccines 2023; 22:704-713. [PMID: 37501516 DOI: 10.1080/14760584.2023.2242528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 07/26/2023] [Indexed: 07/29/2023]
Abstract
INTRODUCTION The global spread of COVID-19 has prompted the development of vaccines. A recombinant adenovirus type-5 vectored COVID-19 vaccine (Ad5-nCoV) developed by Chinese scientists has been authorized for use as a prime and booster dose in China and several other countries. AREAS COVERED We searched published articles as of 4 May 2023, on PubMed using keywords related to Adenovirus vector, vaccine, and SARS-CoV-2. We reported the progress and outcomes of Ad5-nCov, including vaccine efficacy, safety, immunogenicity based on pre-clinical trials, clinical trials, and real-world studies for primary and booster doses. EXPERT OPINION Ad5-nCoV is a significant advancement in Chinese vaccine development technology. Evidence from clinical trials and real-world studies has demonstrated well-tolerated, highly immunogenic, and efficacy of Ad5-nCoV in preventing severe/critical COVID-19. Aerosolized Ad5-nCoV, given via a novel route, could elicit mucosal immunity and improve the vaccine efficacy, enhance the production capacity and availability, and reduce the potential negative impact of preexisting antibodies. However, additional research is necessary to evaluate the long-term safety and immunogenicity of Ad5-nCoV, its efficacy against emerging variants, its effectiveness in a real-world context of hybrid immunity, and its cost-effectiveness, particularly with respect to aerosolized Ad5-nCoV.
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Affiliation(s)
- Shen-Yu Wang
- Department of Immunization Programe, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wen-Qing Liu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yu-Qing Li
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing-Xin Li
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, China
- Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Feng-Cai Zhu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, China
- Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, China
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18
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Bareiß A, Uzun G, Mikus M, Becker M, Althaus K, Schneiderhan-Marra N, Fürstberger A, Schwab JD, Kestler HA, Holderried M, Martus P, Schenke-Layland K, Bakchoul T. Vaccine Side Effects in Health Care Workers after Vaccination against SARS-CoV-2: Data from TüSeRe:exact Study. Viruses 2022; 15:65. [PMID: 36680106 PMCID: PMC9864657 DOI: 10.3390/v15010065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
As the Corona Disease 2019 (COVID-19) caused by SARS-CoV-2 persists, vaccination is one of the key measures to contain the spread. Side effects (SE) from vaccination are one of the reasons for reluctance to vaccinate. We systematically investigated self-reported SE after the first, second, and booster vaccinations. The data were collected during the TüSeRe: exact study (Tübinger Monitoring Studie zur exakten Analyse der Immunantwort nach Vakzinierung). Employees of health and research institutions were invited to participate. Study participants were asked to fill out an online questionnaire and report their SE after each dose of SARS-CoV-2 vaccination. A total of 1046 participants (mean age: 44 ± 12.9 years; female, n = 815 (78%); male, n = 231 (22%)) were included in the analysis. Local and systemic SE were more frequent after receiving the vector-based vaccine ChAdOx1 nCoV-19 in the first vaccination. However, local and systemic SE were more common after receiving mRNA vaccines (BNT162b2, mRNA-1273) in the second vaccination. Compared to the BNT162b2 vaccine, more SE have been observed after receiving the mRNA-1273 vaccine in the booster vaccination. In multivariate analysis, local and systemic side effects were associated with vaccine type, age and gender. Local and systemic SE are common after SARS-CoV-2 vaccines. The frequency of self-reported local and systemic SE differ significantly between mRNA and vector-based vaccines.
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Affiliation(s)
- Alan Bareiß
- Centre for Clinical Transfusion Medicine, 72076 Tübingen, Germany
| | - Günalp Uzun
- Centre for Clinical Transfusion Medicine, 72076 Tübingen, Germany
| | - Marco Mikus
- Centre for Clinical Transfusion Medicine, 72076 Tübingen, Germany
| | - Matthias Becker
- NMI Natural and Medical Sciences Institute, University Tübingen, 72770 Reutlingen, Germany
| | - Karina Althaus
- Centre for Clinical Transfusion Medicine, 72076 Tübingen, Germany
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty of Tuebingen, University Hospital of Tübingen, 72076 Tübingen, Germany
| | | | - Axel Fürstberger
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Julian D. Schwab
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Hans A. Kestler
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Martin Holderried
- Department of Medical Structure, Process and Quality Management, University Hospital Tübingen, 72076 Tübingen, Germany
| | - Peter Martus
- Institute for Clinical Epidemiology and Applied Biostatistics, University Hospital Tübingen, 72076 Tübingen, Germany
| | - Katja Schenke-Layland
- NMI Natural and Medical Sciences Institute, University Tübingen, 72770 Reutlingen, Germany
- Institute of Biomedical Engineering, Department for Medical Technologies & Regenerative Medicine, Eberhard Karls University, 72076 Tübingen, Germany
- Cluster of Excellence iFIT (EXC 2180) “Image-Guided and Functionally Instructed Tumor Therapies”, Eberhard Karls University, 72076 Tübingen, Germany
| | - Tamam Bakchoul
- Centre for Clinical Transfusion Medicine, 72076 Tübingen, Germany
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty of Tuebingen, University Hospital of Tübingen, 72076 Tübingen, Germany
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Immunogenicity, Immune Dynamics, and Subsequent Response to the Booster Dose of Heterologous versus Homologous Prime-Boost Regimens with Adenoviral Vector and mRNA SARS-CoV-2 Vaccine among Liver Transplant Recipients: A Prospective Study. Vaccines (Basel) 2022; 10:vaccines10122126. [PMID: 36560535 PMCID: PMC9781301 DOI: 10.3390/vaccines10122126] [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: 11/17/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022] Open
Abstract
Background: Heterologous prime-boost vaccination potentially augments the immune response against SARS-CoV-2 in liver transplant (LT) recipients. We investigated immunogenicity induced by different primary prime-boost vaccination protocols and the subsequent response to the booster vaccine among LT recipients. Methods: LT recipients, who received primary immunisation with ChAdOx1/ChAdOx1 or ChAdOx1/BNT162b2, were administered the third dose of mRNA-1273 three months following the primary vaccination. Blood samples were collected before and after primary vaccination and post-booster. The levels of receptor binding domain antibody (anti-RBD) and neutralising antibody (sVNT) and spike-specific T-cell responses were assessed. Results: Among the 89 LT recipients, patients receiving ChAdOx1/BNT162b2 had significantly higher anti-RBD titres, sVNT, and cellular response after primary vaccination than those receiving ChAdOx1/ChAdOx1 (p < 0.05). The antibody response decreased 12 weeks after the primary vaccination. After the booster, humoral and cellular responses significantly improved, with comparable seroconversion rates between the heterologous and homologous groups. Positive sVNT against the wild type occurred in >90% of LT patients, with only 12.3% positive against the Omicron variant. Conclusions: ChAdOx1/BNT162b2 evoked a significantly higher immunological response than ChAdOx1/ChAdOx1 in LT recipients. The booster strategy substantially induced robust immunity against wild type in most patients but was less effective against the Omicron strain.
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Lee HK, Hoechstetter MA, Buchner M, Pham TT, Huh JW, Müller K, Zange S, von Buttlar H, Girl P, Wölfel R, Brandmeier L, Pfeuffer L, Furth PA, Wendtner CM, Hennighausen L. Comprehensive analysis of immune responses in CLL patients after heterologous COVID-19 vaccination. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2022:2022.09.21.22280205. [PMID: 36172132 PMCID: PMC9516861 DOI: 10.1101/2022.09.21.22280205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Patients with chronic lymphocytic leukemia (CLL) treated with B-cell pathway inhibitors and anti-CD20 antibodies exhibit low humoral response rate (RR) following SARS-CoV-2 vaccination. To investigate the relationship between the initial transcriptional response to vaccination with ensuing B and T cell immune responses, we performed a comprehensive immune transcriptome analysis flanked by antibody and T cell assays in peripheral blood prospectively collected from 15 CLL/SLL patients vaccinated with heterologous BNT162b2/ChAdOx1 with follow up at a single institution. The two-dose antibody RR was 40% increasing to 53% after booster. Patients on BTKi, venetoclax ± anti-CD20 antibody within 12 months of vaccination responded less well than those under BTKi alone. The two-dose T cell RR was 80% increasing to 93% after booster. Transcriptome studies revealed that seven patients showed interferon-mediated signaling activation within 2 days and one at 7 days after vaccination. Increasing counts of COVID-19 specific IGHV genes correlated with B-cell reconstitution and improved humoral RR. T cell responses in CLL patients appeared after vaccination regardless of treatment status. A higher humoral RR was associated with BTKi treatment and B-cell reconstitution. Boosting was particularly effective when intrinsic immune status was improved by CLL-treatment.
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Affiliation(s)
- Hye Kyung Lee
- National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Manuela A. Hoechstetter
- Munich Clinic Schwabing, Academic Teaching Hospital, Ludwig-Maximilian University (LMU), Munich, Germany
| | - Maike Buchner
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany.,TranslaTUM - Central Institute for Translational Cancer Research, Technische Universität München, 81675 Munich, Germany
| | - Trang Thu Pham
- Munich Clinic Schwabing, Academic Teaching Hospital, Ludwig-Maximilian University (LMU), Munich, Germany
| | - Jin Won Huh
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Katharina Müller
- Bundeswehr Institute of Microbiology, Munich, Germany,German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Sabine Zange
- Bundeswehr Institute of Microbiology, Munich, Germany,German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Heiner von Buttlar
- Bundeswehr Institute of Microbiology, Munich, Germany,German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Philipp Girl
- Bundeswehr Institute of Microbiology, Munich, Germany,German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Roman Wölfel
- Bundeswehr Institute of Microbiology, Munich, Germany,German Centre for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Lisa Brandmeier
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany
| | - Lisa Pfeuffer
- Institute of Clinical Chemistry and Pathobiochemistry, School of Medicine, Technical University of Munich, Munich, Germany
| | - Priscilla A. Furth
- Departments of Oncology & Medicine, Georgetown University, Washington, DC, USA
| | - Clemens-Martin Wendtner
- Munich Clinic Schwabing, Academic Teaching Hospital, Ludwig-Maximilian University (LMU), Munich, Germany
| | - Lothar Hennighausen
- National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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21
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Md Khairi LNH, Fahrni ML, Lazzarino AI. The Race for Global Equitable Access to COVID-19 Vaccines. Vaccines (Basel) 2022; 10:1306. [PMID: 36016194 PMCID: PMC9412387 DOI: 10.3390/vaccines10081306] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 12/13/2022] Open
Abstract
COVID-19 vaccines are possibly the most effective medical countermeasures to mitigate and ultimately bring to a halt the COVID-19 pandemic. As we transition to endemicity, inequitable access to vaccines, and particularly in low- and middle-income countries (LMICs), still poses risks of unprecedented disruptions and the emergence of viral mutations, which potentially lead to notorious vaccine-resistant variants. The missteps learned from the previous responses to the human immunodeficiency virus (HIV) and influenza outbreaks founded the hypothetical plan to ensure that vaccine accessibility to LMICs is not impeded. The SARS-CoV-2 vaccines' social promise was to lessen the underlying racial, ethnic, and geographic inequities that COVID-19 has both made apparent and intensified. Vaccine nationalism was evident throughout the COVID-19 crisis. Many high-income countries directly negotiated large advance orders for the vaccines, leaving resource-limited countries scrambling for access. This occurred despite international initiatives to structure the development and equitable distribution of vaccines, channeled through a vaccine pillar: COVID-19 Vaccines Global Access (COVAX). The serious supply shortages and national procurement methods of some countries that bypassed the vaccine pillar hindered the optimal function of COVAX in delivering timely and adequate doses to participating countries. COVAX strategized its approach by promoting fundraising, coordinating vaccine donations from countries with surplus doses, expediting reviews of vaccine candidates, and facilitating the expansion of the manufacturing capacity. While increasing capacity for production, technology transfer led to lesser siloes, enhanced manufacturing standardization, and less secrecy over production data. Ultracold storage requirements for leading vaccines were a considerable hurdle to the global immunization efforts, and particularly in LMICs with limited equipment and resources to support sophisticated cold-chain systems. Manufacturers strived to ease cold-chain restrictions on the basis of stability data submitted to national regulatory bodies. The development of single-dose vaccines offered promising solutions to simplify the administrative and logistic complexities that existed within the COVID-19 vaccination programs. As such, the requirements for both ultracold storage conditions were eased, and concerns over booster doses were addressed. To expand coverage, the dosing intervals of the Oxford/AstraZeneca vaccines were extended according to data from Phase III clinical trials on effectiveness. In addition, with the recent outbreak of monkeypox, the lessons from past experiences of curbing infectious diseases, including COVID-19, must be learned and acted upon. The review summarizes the global efforts with respect to vaccine development, production, allocation, and deployment to achieve equitable access.
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Affiliation(s)
- Lukman Nul Hakim Md Khairi
- Faculty of Pharmacy, MARA, University of Technology (UiTM), Selangor Branch, Puncak Alam Campus, Puncak Alam 42300, Malaysia
- Pharmacy Department, Hospital Sultanah Nur Zahirah, Ministry of Health Malaysia, Kuala Terengganu 20400, Malaysia
| | - Mathumalar Loganathan Fahrni
- Faculty of Pharmacy, MARA, University of Technology (UiTM), Selangor Branch, Puncak Alam Campus, Puncak Alam 42300, Malaysia
- Collaborative Drug Discovery Research (CDDR) Group, Communities of Research (Pharmaceutical and Life Sciences), Universiti Teknologi MARA (UiTM), Puncak Alam 42300, Malaysia
| | - Antonio Ivan Lazzarino
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London W2 1NY, UK
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