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Nachega JB, Sam-Agudu NA, Ogoina D, Mbala-Kingebeni P, Ntoumi F, Nakouné E, Njouom R, Lewis RF, Gandhi M, Rosenthal PJ, Rawat A, Wilson LA, Kindrachuk J, Liesenborghs L, Mills EJ, Preiser W, Rimoin AW, Sullivan NJ, Peeters M, Delaporte E, Baxter C, Harrison L, Hermans MP, Mohr EL, Gonsalves G, Ndembi N, Zumla A, Muyembe-Tamfum JJ. The surge of mpox in Africa: a call for action. Lancet Glob Health 2024:S2214-109X(24)00187-6. [PMID: 38735300 DOI: 10.1016/s2214-109x(24)00187-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 05/14/2024]
Affiliation(s)
- Jean B Nachega
- Department of Medicine, Division of Infectious Diseases, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town 7505, South Africa; Department of Epidemiology, University of Pittsburgh School of Public Health, Pittsburgh, PA, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Nadia A Sam-Agudu
- Department of Paediatrics and Child Health, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana; International Research Center of Excellence, Institute of Human Virology Nigeria, Abuja, Nigeria; Global Pediatrics Program, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA; Division of Infectious Diseases, Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Dimie Ogoina
- Department of Internal Medicine, Infectious Diseases Unit, Niger Delta University and Niger Delta University Teaching Hospital, Bayelsa, Nigeria
| | - Placide Mbala-Kingebeni
- National Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo; University of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Francine Ntoumi
- Fondation Congolaise pour la Recherche Médicale, Brazzaville, Republic of the Congo; Institute for Tropical Medicine, University of Tübingen, Tübingen, Germany
| | | | | | - Rosamund F Lewis
- Emerging Diseases and Zoonoses Unit, Epidemic and Pandemic Prevention and Preparedness Department, Health Emergencies Programme, WHO, Geneva, Switzerland; School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Monica Gandhi
- Department of Medicine, Division of Infectious Diseases, University of California San Francisco, San Francisco, CA, USA
| | - Philip J Rosenthal
- Department of Medicine, Division of Infectious Diseases, University of California San Francisco, San Francisco, CA, USA
| | - Angeli Rawat
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Lindsay A Wilson
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Jason Kindrachuk
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada
| | - Laurens Liesenborghs
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium; Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Edward J Mills
- Department of Health Research Methods, Evidence and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Wolfgang Preiser
- Department of Pathology, Division of Virology, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, South Africa
| | - Anne W Rimoin
- Department of Epidemiology, Jonathan and Karin Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Nancy J Sullivan
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Martine Peeters
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses endémiques et émergentes, Université de Montpellier, Institut national de la santé et de la recherche médicale, Montpellier, France
| | - Eric Delaporte
- Recherches Translationnelles sur le VIH et les Maladies Infectieuses endémiques et émergentes, Université de Montpellier, Institut national de la santé et de la recherche médicale, Montpellier, France
| | - Cheryl Baxter
- Center for Epidemic Response and Innovation, Stellenbosch University, Cape Town, South Africa
| | - Lee Harrison
- Department of Epidemiology, University of Pittsburgh School of Public Health, Pittsburgh, PA, USA
| | | | - Emma L Mohr
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, USA
| | - Gregg Gonsalves
- Public Health Modeling Unit and Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Nicaise Ndembi
- Africa Centres for Disease Control and Prevention, Addis Ababa, Ethiopia; Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA; Department of International Health, Kanazawa University School of Medicine, Kanazawa, Japan
| | - Alimuddin Zumla
- Division of Infection and Immunity, University College London, London, UK; National Institutes of Health and Research, Biomedical Research Centre, University College London Hospitals National Health Service Foundation Trust, London, UK
| | - Jean Jacques Muyembe-Tamfum
- National Institute of Biomedical Research, Kinshasa, Democratic Republic of the Congo; University of Kinshasa, Kinshasa, Democratic Republic of the Congo
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Auzenbergs M, Maure C, Kang H, Clark A, Brady O, Sahastrabuddhe S, Abbas K. Programmatic considerations and evidence gaps for chikungunya vaccine introduction in countries at risk of chikungunya outbreaks: Stakeholder analysis. PLoS Negl Trop Dis 2024; 18:e0012075. [PMID: 38574163 PMCID: PMC11020901 DOI: 10.1371/journal.pntd.0012075] [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: 10/05/2023] [Revised: 04/16/2024] [Accepted: 03/15/2024] [Indexed: 04/06/2024] Open
Abstract
Chikungunya can have longstanding effects on health and quality of life. Alongside the recent approval of the world's first chikungunya vaccine by the US Food and Drug Administration in November 2023 and with new chikungunya vaccines in the pipeline, it is important to understand the perspectives of stakeholders before vaccine rollout. Our study aim is to identify key programmatic considerations and gaps in Evidence-to-Recommendation criteria for chikungunya vaccine introduction. We used purposive and snowball sampling to identify global, national, and subnational stakeholders from outbreak prone areas, including Latin America, Asia, and Africa. Semi-structured in-depth interviews were conducted and analysed using qualitative descriptive methods. We found that perspectives varied between tiers of stakeholders and geographies. Unknown disease burden, diagnostics, non-specific disease surveillance, undefined target populations for vaccination, and low disease prioritisation were critical challenges identified by stakeholders that need to be addressed to facilitate rolling out a chikungunya vaccine. Future investments should address these challenges to generate useful evidence for decision-making on new chikungunya vaccine introduction.
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Affiliation(s)
- Megan Auzenbergs
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Clara Maure
- International Vaccine Institute, Seoul, South Korea
| | - Hyolim Kang
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Andrew Clark
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Oliver Brady
- London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | - Kaja Abbas
- London School of Hygiene and Tropical Medicine, London, United Kingdom
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
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Anderson EM, Coller BAG. Translational success of fundamental virology: a VSV-vectored Ebola vaccine. J Virol 2024; 98:e0162723. [PMID: 38305150 PMCID: PMC10994820 DOI: 10.1128/jvi.01627-23] [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] [Indexed: 02/03/2024] Open
Abstract
Ebola virus disease (EVD) caused by Ebola virus (EBOV) is a severe, often fatal, hemorrhagic disease. A critical component of the public health response to curb EVD epidemics is the use of a replication-competent, recombinant vesicular stomatitis virus (rVSV)-vectored Ebola vaccine, rVSVΔG-ZEBOV-GP (ERVEBO). In this Gem, we will discuss the past and ongoing development of rVSVΔG-ZEBOV-GP, highlighting the importance of basic science and the strength of public-private partnerships to translate fundamental virology into a licensed VSV-vectored Ebola vaccine.
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Manno D. Developing a vaccine against Sudan virus disease. THE LANCET. INFECTIOUS DISEASES 2023; 23:1333-1335. [PMID: 37544325 DOI: 10.1016/s1473-3099(23)00360-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 08/08/2023]
Affiliation(s)
- Daniela Manno
- London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK.
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5
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Manno D. Developing a vaccine against Marburg virus disease. Lancet 2023; 401:251-253. [PMID: 36709065 DOI: 10.1016/s0140-6736(23)00169-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 12/20/2022] [Indexed: 01/27/2023]
Affiliation(s)
- Daniela Manno
- London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK.
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Hunegnaw R, Honko AN, Wang L, Carr D, Murray T, Shi W, Nguyen L, Storm N, Dulan CNM, Foulds KE, Agans KN, Cross RW, Geisbert JB, Cheng C, Ploquin A, Stanley DA, Geisbert TW, Nabel GJ, Sullivan NJ. A single-shot ChAd3-MARV vaccine confers rapid and durable protection against Marburg virus in nonhuman primates. Sci Transl Med 2022; 14:eabq6364. [PMID: 36516269 DOI: 10.1126/scitranslmed.abq6364] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Marburg virus (MARV) causes a severe hemorrhagic fever disease in primates with mortality rates in humans of up to 90%. MARV has been identified as a category A bioterrorism agent by the Centers for Disease Control and Prevention (CDC) and priority pathogen A by the National Institute of Allergy and Infectious Diseases (NIAID), needing urgent research and development of countermeasures because of the high public health risk it poses. The recent cases of MARV in West Africa underscore the substantial outbreak potential of this virus. The potential for cross-border spread, as had occurred during the 2014-2016 Ebola virus outbreak, illustrates the critical need for MARV vaccines. To support regulatory approval of the chimpanzee adenovirus 3 (ChAd3)-MARV vaccine that has completed phase 1 trials, we showed that the nonreplicating ChAd3 vector, which has a demonstrated safety profile in humans, protected against a uniformly lethal challenge with MARV/Ang. Protective immunity was achieved within 7 days of vaccination and was maintained through 1 year after vaccination. Antigen-specific antibodies were an immune correlate of protection in the acute challenge model, and their concentration was predictive of protection. These results demonstrate that a single-shot ChAd3-MARV vaccine generated a protective immune response that was both rapid and durable with an immune correlate of protection that will support advanced clinical development.
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Affiliation(s)
- Ruth Hunegnaw
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Anna N Honko
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA.,National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
| | - Lingshu Wang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Derick Carr
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Tamar Murray
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Wei Shi
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Lam Nguyen
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Nadia Storm
- National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
| | - Caitlyn N M Dulan
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Kathryn E Foulds
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Krystle N Agans
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Robert W Cross
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Joan B Geisbert
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Cheng Cheng
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Aurélie Ploquin
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Daphne A Stanley
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Thomas W Geisbert
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Gary J Nabel
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Nancy J Sullivan
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
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Cooper CL, Morrow G, Yuan M, Coleman JW, Hou F, Reiserova L, Li SL, Wagner D, Carpov A, Wallace-Selman O, Valentin K, Choi Y, Wilson A, Kilianski A, Sayeed E, Agans KN, Borisevich V, Cross RW, Geisbert TW, Feinberg MB, Gupta SB, Parks CL. Nonhuman Primates Are Protected against Marburg Virus Disease by Vaccination with a Vesicular Stomatitis Virus Vector-Based Vaccine Prepared under Conditions to Allow Advancement to Human Clinical Trials. Vaccines (Basel) 2022; 10:1582. [PMID: 36298451 PMCID: PMC9610558 DOI: 10.3390/vaccines10101582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Vaccines are needed to disrupt or prevent continued outbreaks of filoviruses in humans across Western and Central Africa, including outbreaks of Marburg virus (MARV). As part of a filovirus vaccine product development plan, it is important to investigate dose response early in preclinical development to identify the dose range that may be optimal for safety, immunogenicity, and efficacy, and perhaps demonstrate that using lower doses is feasible, which will improve product access. To determine the efficacious dose range for a manufacturing-ready live recombinant vesicular stomatitis virus vaccine vector (rVSV∆G-MARV-GP) encoding the MARV glycoprotein (GP), a dose-range study was conducted in cynomolgus macaques. Results showed that a single intramuscular injection with as little as 200 plaque-forming units (PFUs) was 100% efficacious against lethality and prevented development of viremia and clinical pathologies associated with MARV Angola infection. Across the vaccine doses tested, there was nearly a 2000-fold range of anti-MARV glycoprotein (GP) serum IgG titers with seroconversion detectable even at the lowest doses. Virus-neutralizing serum antibodies also were detected in animals vaccinated with the higher vaccine doses indicating that vaccination induced functional antibodies, but that the assay was a less sensitive indicator of seroconversion. Collectively, the data indicates that a relatively wide range of anti-GP serum IgG titers are observed in animals that are protected from disease implying that seroconversion is positively associated with efficacy, but that more extensive immunologic analyses on samples collected from our study as well as future preclinical studies will be valuable in identifying additional immune responses correlated with protection that can serve as markers to monitor in human trials needed to generate data that can support vaccine licensure in the future.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Krystle N. Agans
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Viktoriya Borisevich
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Robert W. Cross
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Thomas W. Geisbert
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
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Bridging Animal and Human Data in Pursuit of Vaccine Licensure. Vaccines (Basel) 2022; 10:vaccines10091384. [PMID: 36146462 PMCID: PMC9503666 DOI: 10.3390/vaccines10091384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/03/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022] Open
Abstract
The FDA Animal Rule was devised to facilitate approval of candidate vaccines and therapeutics using animal survival data when human efficacy studies are not practical or ethical. This regulatory pathway is critical for candidates against pathogens with high case fatality rates that prohibit human challenge trials, as well as candidates with low and sporadic incidences of outbreaks that make human field trials difficult. Important components of a vaccine development plan for Animal Rule licensure are the identification of an immune correlate of protection and immunobridging to humans. The relationship of vaccine-induced immune responses to survival after vaccination and challenge must be established in validated animal models and then used to infer predictive vaccine efficacy in humans via immunobridging. The Sabin Vaccine Institute is pursuing licensure for candidate filovirus vaccines via the Animal Rule and has convened meetings of key opinion leaders and subject matter experts to define fundamental components for vaccine licensure in the absence of human efficacy data. Here, filoviruses are used as examples to review immune correlates of protection and immunobridging. The points presented herein reflect the presentations and discussions during the second meeting held in October 2021 and are intended to address important considerations for developing immunobridging strategies.
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