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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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2
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Fischer C, Willscher E, Paschold L, Gottschick C, Klee B, Diexer S, Bosurgi L, Dutzmann J, Sedding D, Frese T, Girndt M, Hoell JI, Gekle M, Addo MM, Schulze Zur Wiesch J, Mikolajczyk R, Binder M, Schultheiß C. SARS-CoV-2 vaccination may mitigate dysregulation of IL-1/IL-18 and gastrointestinal symptoms of the post-COVID-19 condition. NPJ Vaccines 2024; 9:23. [PMID: 38316833 PMCID: PMC10844289 DOI: 10.1038/s41541-024-00815-1] [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: 09/07/2023] [Accepted: 01/24/2024] [Indexed: 02/07/2024] Open
Abstract
The rapid development of safe and effective vaccines helped to prevent severe disease courses after SARS-CoV-2 infection and to mitigate the progression of the COVID-19 pandemic. While there is evidence that vaccination may reduce the risk of developing post-COVID-19 conditions (PCC), this effect may depend on the viral variant. Therapeutic effects of post-infection vaccination have been discussed but the data for individuals with PCC remains inconclusive. In addition, extremely rare side effects after SARS-CoV-2 vaccination may resemble the heterogeneous PCC phenotype. Here, we analyze the plasma levels of 25 cytokines and SARS-CoV-2 directed antibodies in 540 individuals with or without PCC relative to one or two mRNA-based COVID-19 vaccinations as well as in 20 uninfected individuals one month after their initial mRNA-based COVID-19 vaccination. While none of the SARS-CoV-2 naïve individuals reported any persisting sequelae or exhibited PCC-like dysregulation of plasma cytokines, we detected lower levels of IL-1β and IL-18 in patients with ongoing PCC who received one or two vaccinations at a median of six months after infection as compared to unvaccinated PCC patients. This reduction correlated with less frequent reporting of persisting gastrointestinal symptoms. These data suggest that post-infection vaccination in patients with PCC might be beneficial in a subgroup of individuals displaying gastrointestinal symptoms.
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Affiliation(s)
- Claudia Fischer
- Division of Medical Oncology, University Hospital Basel, Basel, Switzerland
- Laboratory of Translational Immuno-Oncology, Department of Biomedicine, University, and University Hospital Basel, Basel, Switzerland
| | - Edith Willscher
- Department of Internal Medicine IV, Oncology/Hematology, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Lisa Paschold
- Department of Internal Medicine IV, Oncology/Hematology, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Cornelia Gottschick
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Medical School of the Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Bianca Klee
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Medical School of the Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Sophie Diexer
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Medical School of the Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Lidia Bosurgi
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Protozoa Immunology, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Jochen Dutzmann
- Mid-German Heart Center, Department of Cardiology and Intensive Care Medicine, University Hospital, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Daniel Sedding
- Mid-German Heart Center, Department of Cardiology and Intensive Care Medicine, University Hospital, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Thomas Frese
- Institute of General Practice and Family Medicine, Martin-Luther-University Halle-Wittenberg, Halle, (Saale), Germany
| | - Matthias Girndt
- Department of Internal Medicine II, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Jessica I Hoell
- Pediatric Hematology and Oncology, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Michael Gekle
- Julius Bernstein-Institute of Physiology, Faculty of Medicine, Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Marylyn M Addo
- I. Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Braunschweig, Germany
- University Medical Center Hamburg-Eppendorf, Institute for Infection Research and Vaccine Development (IIRVD), Hamburg, Germany
| | | | - Rafael Mikolajczyk
- Institute for Medical Epidemiology, Biometrics, and Informatics (IMEBI), Interdisciplinary Center for Health Sciences, Medical School of the Martin Luther University Halle-Wittenberg, Halle, (Saale), Germany
| | - Mascha Binder
- Division of Medical Oncology, University Hospital Basel, Basel, Switzerland
- Laboratory of Translational Immuno-Oncology, Department of Biomedicine, University, and University Hospital Basel, Basel, Switzerland
| | - Christoph Schultheiß
- Division of Medical Oncology, University Hospital Basel, Basel, Switzerland.
- Laboratory of Translational Immuno-Oncology, Department of Biomedicine, University, and University Hospital Basel, Basel, Switzerland.
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3
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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. Superior Boosting of Neutralizing Titers Against Omicron SARS-CoV-2 Variants by Heterologous SCB-2019 Vaccine vs a Homologous Booster in CoronaVac-Primed Adults. J Infect Dis 2023; 228:1253-1262. [PMID: 37439701 PMCID: PMC10629704 DOI: 10.1093/infdis/jiad262] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND We compared homologous and heterologous boosting in adults in the Philippines primed with 2 or 3 doses of CoronaVac, with recombinant protein vaccine, SCB-2019. METHODS CoronaVac-immunized adults (18-72 years) received a homologous or heterologous full or half dose SCB-2019 booster. We assessed all neutralizing antibody (NAb) responses against prototype SARS-CoV-2 after 15 days and NAb against SARS-CoV-2 Delta and Omicron variants in subsets (30‒50 per arm). Participants recorded adverse events. RESULTS In 2-dose CoronaVac-primed adults prototype NAb geometric mean titers (GMT) were 203 IU/mL (95% confidence interval [CI], 182-227) and 939 IU/mL (95% CI, 841-1049) after CoronaVac and SCB-2019 boosters; the GMT ratio (4.63; 95% CI, 3.95-5.41) met predefined noninferiority and post-hoc superiority criteria. After 3-dose CoronaVac-priming prototype NAb GMTs were 279 IU/mL (95% CI, 240-325), 1044 IU/mL (95% CI, 898-1213), and 668 IU/mL (95% CI, 520-829) following CoronaVac, full and half-dose SCB-2019 boosters, respectively. NAb GMT ratios against Delta and Omicron comparing SCB-2019 with CoronaVac were all greater than 2. Mild to moderate reactogenicity was evenly balanced between groups. No vaccine-related serious adverse events were reported. CONCLUSIONS Full or half dose SCB-2019 boosters were well tolerated with superior immunogenicity than homologous CoronaVac, particularly against newly emerged variants. Clinical Trials Registration. NCT05188677.
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Affiliation(s)
- Camilo C Roa
- Department of Physiology, Philippine General Hospital, University of the Philippines, Manila, Philippines
| | | | | | - Igor Smolenov
- Clover Biopharmaceuticals, Boston, Massachusetts, USA
| | - Branda Hu
- Clover Biopharmaceuticals, Boston, Massachusetts, USA
| | - Faith Gao
- Clover Biopharmaceuticals, Boston, Massachusetts, USA
| | | | | | | | - Ralf Clemens
- International Vaccine Institute, Seoul, Republic of Korea
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Jacobsen H, Sitaras I, Katzmarzyk M, Cobos Jiménez V, Naughton R, Higdon MM, Deloria Knoll M. Systematic review and meta-analysis of the factors affecting waning of post-vaccination neutralizing antibody responses against SARS-CoV-2. NPJ Vaccines 2023; 8:159. [PMID: 37863890 PMCID: PMC10589259 DOI: 10.1038/s41541-023-00756-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/02/2023] [Indexed: 10/22/2023] Open
Abstract
Mass COVID-19 vaccination and continued introduction of new SARS-CoV-2 variants increased prevalence of hybrid immunity at various stages of waning protection. We systematically reviewed waning of post-vaccination neutralizing antibody titers in different immunological settings to investigate differences. We searched published and pre-print studies providing post-vaccination neutralizing antibody responses against the Index strain or Omicron BA.1. We used random effects meta-regression to estimate fold-reduction from months 1 to 6 post last dose by primary vs booster regimen and infection-naïve vs hybrid-immune cohorts. Among 26 eligible studies, 65 cohorts (range 3-21 per stratum) were identified. Month-1 titers varied widely across studies within each cohort and by vaccine platform, number of doses and number of prior infections. In infection-naïve cohorts, the Index strain waned 5.1-fold (95%CI: 3.4-7.8; n = 19 cohorts) post-primary regimen and 3.8-fold (95%CI: 2.4-5.9; n = 21) post-booster from months 1 to 6, and against Omicron BA.1 waned 5.9-fold (95%CI: 3.8-9.0; n = 16) post-booster; Omicron BA.1 titers post-primary were too low to assess. In hybrid-immune, post-primary cohorts, titers waned 3.7-fold (95%CI: 1.7-7.9; n = 8) against the Index strain and 5.0-fold (95%CI: 1.1-21.8; n = 6) against Omicron BA.1; post-booster studies of hybrid-immune cohorts were too few (n = 3 cohorts each strain) to assess. Waning was similar across vaccination regimen and prior-infection status strata but was faster for Omicron BA.1 than Index strains, therefore, more recent sub-variants should be monitored. Wide differences in peak titers by vaccine platform and prior infection status mean titers drop to non-protective levels sooner in some instances, which may affect policy.
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Affiliation(s)
- Henning Jacobsen
- Department of Viral Immunology, Helmholtz Center for Infection Research, Braunschweig, Germany.
| | - Ioannis Sitaras
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | | | | | - Melissa M Higdon
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Maria Deloria Knoll
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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5
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Townsend L, Kelly G, Kenny C, McGrath J, Donohue S, Allen N, Doherty L, Noonan N, Martin G, Fleming C, Bergin C. Healthcare Worker Characteristics Associated with SARS-CoV-2 Vaccine Uptake in Ireland; a Multicentre Cross-Sectional Study. Vaccines (Basel) 2023; 11:1529. [PMID: 37896933 PMCID: PMC10610998 DOI: 10.3390/vaccines11101529] [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: 09/04/2023] [Revised: 09/18/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
The prevention of SARS-CoV-2 acquisition and transmission among healthcare workers is an ongoing challenge. Vaccination has been introduced to mitigate these risks. Vaccine uptake varies among healthcare workers in the absence of vaccine mandates. We investigated engagement with SARS-CoV-2 vaccination among healthcare workers and identified characteristics associated with lower vaccine uptake. This multi-site cross-sectional study recruited n = 1260 healthcare workers in both clinical and non-clinical roles over a three-month period from November 2022. Participants reported their engagement with the primary SARS-CoV-2 vaccination programme and subsequent booster programmes, as well as providing demographic, occupational and personal medical history information. Multivariable linear regression identified characteristics associated with vaccine uptake. Engagement with vaccination programmes was high, with 88% of participants receiving at least one booster dose after primary vaccination course. Younger age and female sex were associated with reduced vaccine uptake. Healthcare workers in non-clinical roles also had reduced vaccine uptake. These findings should inform vaccination strategies across healthcare settings and target populations with reduced vaccine uptake directly, in particular young, female, and non-clinical healthcare workers, both for SARS-CoV-2 and other healthcare-associated vaccine-preventable infections.
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Affiliation(s)
- Liam Townsend
- Department of Infectious Diseases, St James’s Hospital, D08 NHY1 Dublin, Ireland; (L.T.)
| | - Gavin Kelly
- Department of Infectious Diseases, University Hospital Galway, H91 YR71 Galway, Ireland
| | - Claire Kenny
- Department of Infectious Diseases, University Hospital Galway, H91 YR71 Galway, Ireland
| | - Jonathan McGrath
- Department of Infectious Diseases, St James’s Hospital, D08 NHY1 Dublin, Ireland; (L.T.)
| | - Seán Donohue
- Department of Infectious Diseases, St James’s Hospital, D08 NHY1 Dublin, Ireland; (L.T.)
| | - Niamh Allen
- Department of Infectious Diseases, St James’s Hospital, D08 NHY1 Dublin, Ireland; (L.T.)
| | | | - Noirin Noonan
- Department of Occupational Medicine, St James’s Hospital, D08 NHY1 Dublin, Ireland
| | - Greg Martin
- Health Protection Surveillance Centre, D01 A4A3 Dublin, Ireland
| | | | - Catherine Fleming
- Department of Infectious Diseases, University Hospital Galway, H91 YR71 Galway, Ireland
| | - Colm Bergin
- Department of Infectious Diseases, St James’s Hospital, D08 NHY1 Dublin, Ireland; (L.T.)
- Department of Clinical Medicine, Trinity College Dublin, D02 PN40 Dublin, Ireland
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6
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Feikin DR, Higdon MM, Andrews N, Collie S, Deloria Knoll M, Kwong JC, Link-Gelles R, Pilishvili T, Patel MK. Assessing COVID-19 vaccine effectiveness against Omicron subvariants: Report from a meeting of the World Health Organization. Vaccine 2023; 41:2329-2338. [PMID: 36797097 PMCID: PMC9910025 DOI: 10.1016/j.vaccine.2023.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Emerging in November 2021, the SARS-CoV-2 Omicron variant of concern exhibited marked immune evasion resulting in reduced vaccine effectiveness against SARS-CoV-2 infection and symptomatic disease. Most vaccine effectiveness data on Omicron are derived from the first Omicron subvariant, BA.1, which caused large waves of infection in many parts of the world within a short period of time. BA.1, however, was replaced by BA.2 within months, and later by BA.4 and BA.5 (BA.4/5). These later Omicron subvariants exhibited additional mutations in the spike protein of the virus, leading to speculation that they might result in even lower vaccine effectiveness. To address this question, the World Health Organization hosted a virtual meeting on December 6, 2022, to review available evidence for vaccine effectiveness against the major Omicron subvariants up to that date. Data were presented from South Africa, the United Kingdom, the United States, and Canada, as well as the results of a review and meta-regression of studies that evaluated the duration of the vaccine effectiveness for multiple Omicron subvariants. Despite heterogeneity of results and wide confidence intervals in some studies, the majority of studies showed vaccine effectiveness tended to be lower against BA.2 and especially against BA.4/5, compared to BA.1, with perhaps faster waning against severe disease caused by BA.4/5 after a booster dose. The interpretation of these results was discussed and both immunological factors (i.e., more immune escape with BA.4/5) and methodological issues (e.g., biases related to differences in the timing of subvariant circulation) were possible explanations for the findings. COVID-19 vaccines still provide some protection against infection and symptomatic disease from all Omicron subvariants for at least several months, with greater and more durable protection against severe disease.
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Affiliation(s)
- Daniel R Feikin
- Department of Immunizations, Vaccines and Biologicals, World Health Organization, Geneva, Switzerland.
| | - Melissa M Higdon
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Nick Andrews
- UK Health Security Agency, London, United Kingdom
| | | | - Maria Deloria Knoll
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Ruth Link-Gelles
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, USA; U.S. Public Health Service Commissioned Corps, Rockville, MD, USA
| | - Tamara Pilishvili
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, USA
| | - Minal K Patel
- Department of Immunizations, Vaccines and Biologicals, World Health Organization, Geneva, Switzerland; U.S. Public Health Service Commissioned Corps, Rockville, MD, USA
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Tosta S, Moreno K, Schuab G, Fonseca V, Segovia FMC, Kashima S, Elias MC, Sampaio SC, Ciccozzi M, Alcantara LCJ, Slavov SN, Lourenço J, Cella E, Giovanetti M. Global SARS-CoV-2 genomic surveillance: What we have learned (so far). INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2023; 108:105405. [PMID: 36681102 PMCID: PMC9847326 DOI: 10.1016/j.meegid.2023.105405] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023]
Abstract
The COVID-19 pandemic has brought significant challenges for genomic surveillance strategies in public health systems worldwide. During the past thirty-four months, many countries faced several epidemic waves of SARS-CoV-2 infections, driven mainly by the emergence and spread of novel variants. In that line, genomic surveillance has been a crucial toolkit to study the real-time SARS-CoV-2 evolution, for the assessment and optimization of novel diagnostic assays, and to improve the efficacy of existing vaccines. During the pandemic, the identification of emerging lineages carrying lineage-specific mutations (particularly those in the Receptor Binding domain) showed how these mutations might significantly impact viral transmissibility, protection from reinfection and vaccination. So far, an unprecedented number of SARS-CoV-2 viral genomes has been released in public databases (i.e., GISAID, and NCBI), achieving 14 million genome sequences available as of early-November 2022. In the present review, we summarise the global landscape of SARS-CoV-2 during the first thirty-four months of viral circulation and evolution. It demonstrates the urgency and importance of sustained investment in genomic surveillance strategies to timely identify the emergence of any potential viral pathogen or associated variants, which in turn is key to epidemic and pandemic preparedness.
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Affiliation(s)
- Stephane Tosta
- Interunit Postgraduate Program in Bioinformatics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Keldenn Moreno
- Interunit Postgraduate Program in Bioinformatics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gabriel Schuab
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil; Laboratório de Flavivirus, Instituto Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vagner Fonseca
- Organização Pan-Americana da Saúde/Organização Mundial da Saúde, Brasília, Distrito Federal, Brazil.
| | | | - Simone Kashima
- Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo,Brazil
| | | | | | - Massimo Ciccozzi
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, Italy
| | - Luiz Carlos Junior Alcantara
- Interunit Postgraduate Program in Bioinformatics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Laboratório de Flavivirus, Instituto Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Svetoslav Nanev Slavov
- Blood Center of Ribeirão Preto, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo,Brazil; Butantan Institute, São Paulo, Brazil
| | - José Lourenço
- BioISI (Biosystems and Integrative Sciences Institute), Faculdade de Ciências da Universidade de Lisboa, Lisboa,Portugal
| | - Eleonora Cella
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32827, USA.
| | - Marta Giovanetti
- Interunit Postgraduate Program in Bioinformatics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Laboratório de Flavivirus, Instituto Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil; Department of Science and Technology for Humans and the Environment, University of Campus Bio-Medico di Roma, Rome, Italy.
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8
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Panorama of Breakthrough Infection Caused by SARS-CoV-2: A Review. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58121733. [PMID: 36556935 PMCID: PMC9784755 DOI: 10.3390/medicina58121733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022]
Abstract
Since the outbreak of the novel coronavirus disease 2019 (COVID-19) in 2019, many countries have successively developed a variety of vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, with the continuous spread of SARS-CoV-2, it has evolved several variants; as a result, prevention and control of the pandemic of SARS-CoV-2 has become more important. Among these variants, the Omicron variant has higher transmissibility and immune escape ability and is the main variant causing a large number of COVID-19 breakthrough infection, thus, presenting new challenges to pandemic prevention and control. Hence, we review the biological characteristics of the Omicron variant and discuss the current status and possible mechanism of breakthrough infection caused by the Omicron variant in order to provide insights into the prevention and control of the pandemic of SARS-CoV-2.
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