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Nezafat Maldonado B, Singhal G, Chow L, Hargreaves D, Gale C, Battersby C. Association between birth location and short-term outcomes for babies with gastroschisis, congenital diaphragmatic hernia and oesophageal fistula: a systematic review. BMJ Paediatr Open 2023; 7:e002007. [PMID: 37474200 PMCID: PMC10357737 DOI: 10.1136/bmjpo-2023-002007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/13/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND Neonatal care is commonly regionalised, meaning specialist services are only available at certain units. Consequently, infants with surgical conditions needing specialist care who are born in non-surgical centres require postnatal transfer. Best practice models advocate for colocated maternity and surgical services as the place of birth for infants with antenatally diagnosed congenital conditions to avoid postnatal transfers. We conducted a systematic review to explore the association between location of birth and short-term outcomes of babies with gastroschisis, congenital diaphragmatic hernia (CDH) and oesophageal atresia with or without tracheo-oesophageal fistula (TOF/OA). METHODS We searched MEDLINE, CINAHL, Web of Science and SCOPUS databases for studies from high income countries comparing outcomes for infants with gastroschisis, CDH or TOF/OA based on their place of delivery. Outcomes of interest included mortality, length of stay, age at first feed, comorbidities and duration of parenteral nutrition. We assessed study quality using the Newcastle-Ottawa Scale. We present a narrative synthesis of our findings. RESULTS Nineteen cohort studies compared outcomes of babies with one of gastroschisis, CDH or TOF/OA. Heterogeneity across the studies precluded meta-analysis. Eight studies carried out case-mix adjustments. Overall, we found conflicting evidence. There is limited evidence to suggest that birth in a maternity unit with a colocated surgical centre was associated with a reduction in mortality for CDH and decreased length of stay for gastroschisis. CONCLUSIONS There is little evidence to suggest that delivery in colocated maternity-surgical services may be associated with shortened length of stay and reduced mortality. Our findings are limited by significant heterogeneity, potential for bias and paucity of strong evidence. This supports the need for further research to investigate the impact of birth location on outcomes for babies with congenital surgical conditions and inform future design of neonatal care systems. PROSPERO REGISTRATION NUMBER CRD42022329090.
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Affiliation(s)
| | | | - LiYan Chow
- Neonatal Medicine Department, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | | | - Chris Gale
- Neonatal Medicine, Chelsea and Westminster Hospital Campus, Imperial College London, London, UK
| | - Cheryl Battersby
- Neonatal Medicine, Chelsea and Westminster Hospital Campus, Imperial College London, London, UK
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Simmonds P, Adriaenssens EM, Zerbini FM, Abrescia NGA, Aiewsakun P, Alfenas-Zerbini P, Bao Y, Barylski J, Drosten C, Duffy S, Duprex WP, Dutilh BE, Elena SF, García ML, Junglen S, Katzourakis A, Koonin EV, Krupovic M, Kuhn JH, Lambert AJ, Lefkowitz EJ, Łobocka M, Lood C, Mahony J, Meier-Kolthoff JP, Mushegian AR, Oksanen HM, Poranen MM, Reyes-Muñoz A, Robertson DL, Roux S, Rubino L, Sabanadzovic S, Siddell S, Skern T, Smith DB, Sullivan MB, Suzuki N, Turner D, Van Doorslaer K, Vandamme AM, Varsani A, Vasilakis N. Four principles to establish a universal virus taxonomy. PLoS Biol 2023; 21:e3001922. [PMID: 36780432 PMCID: PMC9925010 DOI: 10.1371/journal.pbio.3001922] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
A universal taxonomy of viruses is essential for a comprehensive view of the virus world and for communicating the complicated evolutionary relationships among viruses. However, there are major differences in the conceptualisation and approaches to virus classification and nomenclature among virologists, clinicians, agronomists, and other interested parties. Here, we provide recommendations to guide the construction of a coherent and comprehensive virus taxonomy, based on expert scientific consensus. Firstly, assignments of viruses should be congruent with the best attainable reconstruction of their evolutionary histories, i.e., taxa should be monophyletic. This fundamental principle for classification of viruses is currently included in the International Committee on Taxonomy of Viruses (ICTV) code only for the rank of species. Secondly, phenotypic and ecological properties of viruses may inform, but not override, evolutionary relatedness in the placement of ranks. Thirdly, alternative classifications that consider phenotypic attributes, such as being vector-borne (e.g., "arboviruses"), infecting a certain type of host (e.g., "mycoviruses," "bacteriophages") or displaying specific pathogenicity (e.g., "human immunodeficiency viruses"), may serve important clinical and regulatory purposes but often create polyphyletic categories that do not reflect evolutionary relationships. Nevertheless, such classifications ought to be maintained if they serve the needs of specific communities or play a practical clinical or regulatory role. However, they should not be considered or called taxonomies. Finally, while an evolution-based framework enables viruses discovered by metagenomics to be incorporated into the ICTV taxonomy, there are essential requirements for quality control of the sequence data used for these assignments. Combined, these four principles will enable future development and expansion of virus taxonomy as the true evolutionary diversity of viruses becomes apparent.
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Affiliation(s)
- Peter Simmonds
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | | | - F. Murilo Zerbini
- Departamento de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Nicola G. A. Abrescia
- Structure and Cell Biology of Viruses Lab, Center for Cooperative Research in Biosciences—BRTA, Derio, Spain
- Basque Foundation for Science, IKERBASQUE, Bilbao, Spain
| | - Pakorn Aiewsakun
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | - Yiming Bao
- National Genomics Data Center, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jakub Barylski
- Department of Molecular Virology, Adam Mickiewicz University, Poznan, Poland
| | - Christian Drosten
- Institute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Free University Berlin, Humboldt University, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Siobain Duffy
- Department of Ecology, Evolution and Natural Resources, School of Environmental and Biological Sciences, Rutgers The State University of New Jersey, New Brunswick, New Jersey, United States of America
| | - W. Paul Duprex
- The Center for Vaccine Research, University of Pittsburgh School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Bas E. Dutilh
- Institute of Biodiversity, Faculty of Biological Sciences, Cluster of Excellence Balance of the Microverse, Friedrich-Schiller-University, Jena, Germany
- Theoretical Biology and Bioinformatics, Science for Life, Utrecht University, Utrecht, the Netherlands
| | - Santiago F. Elena
- Instituto de Biología Integrativa de Sistemas (I2SysBio), CSIC-Universitat de València, Valencia, Spain
- Santa Fe Institute, Santa Fe, New Mexico, United States of America
| | - Maria Laura García
- Instituto de Biotecnología y Biología Molecular, CCT-La Plata, CONICET, UNLP, La Plata, Argentina
| | - Sandra Junglen
- Institute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Free University Berlin, Humboldt University, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Aris Katzourakis
- Department of Biology, University of Oxford, Oxford, United Kingdom
| | - Eugene V. Koonin
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Mart Krupovic
- Institut Pasteur, Université Paris Cité, CNRS UMR6047, Archaeal Virology Unit, Paris, France
| | - Jens H. Kuhn
- Integrated Research Facility at Fort Detrick (IRF-Frederick), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, Maryland, United States of America
| | - Amy J. Lambert
- Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado, United States of America
| | - Elliot J. Lefkowitz
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Małgorzata Łobocka
- Institute of Biochemistry and Biophysics of the Polish Academy of Sciences, Warsaw, Poland
| | - Cédric Lood
- Department of Biosystems, KU Leuven, Leuven, Belgium
| | - Jennifer Mahony
- School of Microbiology and APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Jan P. Meier-Kolthoff
- Department of Bioinformatics and Databases, Leibniz Institute DSMZ—German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany
| | - Arcady R. Mushegian
- Division of Molecular and Cellular Biosciences, National Science Foundation, Alexandria, Virginia, United States of America
| | - Hanna M. Oksanen
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Minna M. Poranen
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Alejandro Reyes-Muñoz
- Max Planck Tandem Group in Computational Biology, Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia
| | - David L. Robertson
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Simon Roux
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America
| | - Luisa Rubino
- Istituto per la Protezione Sostenibile delle Piante, CNR, UOS Bari, Bari, Italy
| | - Sead Sabanadzovic
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, Mississippi, United States of America
| | - Stuart Siddell
- School of Cellular and Molecular Medicine, Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom
| | - Tim Skern
- Medical University of Vienna, Max Perutz Labs, Vienna Biocenter, Vienna, Austria
| | - Donald B. Smith
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Matthew B. Sullivan
- Departments of Microbiology and Civil, Environmental, and Geodetic Engineering, Ohio State University, Columbus, Ohio, United States of America
| | - Nobuhiro Suzuki
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Okayama, Japan
| | - Dann Turner
- School of Applied Sciences, College of Health, Science and Society, University of the West of England, Bristol, United Kingdom
| | - Koenraad Van Doorslaer
- School of Animal and Comparative Biomedical Sciences, Department of Immunobiology, BIO5 Institute, and University of Arizona Cancer Center, Tucson, Arizona, United States of America
| | - Anne-Mieke Vandamme
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Leuven, Belgium
- Center for Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Arvind Varsani
- The Biodesign Center for Fundamental and Applied Microbiomics, School of Life Sciences, Center for Evolution and Medicine, Arizona State University, Tempe, Arizona, United States of America
| | - Nikos Vasilakis
- Department of Pathology, Center of Vector-Borne and Zoonotic Diseases, Institute for Human Infection and Immunity and World Reference Center for Emerging Viruses and Arboviruses, The University of Texas Medical Branch, Galveston, Texas, United States of America
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van Pinxteren M, Mbokazi N, Murphy K, Mair FS, May C, Levitt NS. Using qualitative study designs to understand treatment burden and capacity for self-care among patients with HIV/NCD multimorbidity in South Africa: A methods paper. J Multimorb Comorb 2023; 13:26335565231168041. [PMID: 37057034 PMCID: PMC10088413 DOI: 10.1177/26335565231168041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Background Low- and middle-income countries (LMICs), including South Africa, are currently experiencing multiple epidemics: HIV and the rising burden of non-communicable diseases (NCDs), leading to different patterns of multimorbidity (the occurrence of two or more chronic conditions) than experienced in high income settings. These adversely affect health outcomes, increase patients' perceived burden of treatment, and impact the workload of self-management. This paper outlines the methods used in a qualitative study exploring burden of treatment among people living with HIV/NCD multimorbidity in South Africa. Methods We undertook a comparative qualitative study to examine the interaction between individuals' treatment burden (self-management workload) and their capacity to take on this workload, using the dual lenses of Burden of Treatment Theory (BoTT) and Cumulative Complexity Model (CuCoM) to aid conceptualisation of the data. We interviewed 30 people with multimorbidity and 16 carers in rural Eastern Cape and urban Cape Town between February-April 2021. Data was analysed through framework analysis. Findings This paper discusses the methodological procedures considered when conducting qualitative research among people with multimorbidity in low-income settings in South Africa. We highlight the decisions made when developing the research design, recruiting participants, and selecting field-sites. We also explore data analysis processes and reflect on the positionality of the research project and researchers. Conclusion This paper illustrates the decision-making processes conducting this qualitative research and may be helpful in informing future research aiming to qualitatively investigate treatment burden among patients in LMICs.
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Affiliation(s)
- Myrna van Pinxteren
- Chronic Disease Initiative for Africa, Department of Medicine, University of Cape Town, South Africa
| | - Nonzuzo Mbokazi
- Chronic Disease Initiative for Africa, Department of Medicine, University of Cape Town, South Africa
| | - Katherine Murphy
- Chronic Disease Initiative for Africa, Department of Medicine, University of Cape Town, South Africa
| | - Frances S Mair
- Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, UK; NIHR North Thames Applied Research Collaboration, London, UK
| | - Carl May
- School of Health and Well-Being, College of Medical, Veterinary and Life Sciences, University of Glasgow, Scotland, UK
| | - Naomi S Levitt
- Chronic Disease Initiative for Africa, Department of Medicine, University of Cape Town, South Africa
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Fintzi J, Bonnett T, Tebas P, Marconi VC, Levine CB, El Sahly HM, McLellan SLF, Benson CA, Rostad CA, Ganesan A, Huprikar N, Frank MG, Mularski RA, Atmar RL, Park PK, Short WR, Beigel JH, Mehta AK, Sweeney DA. Unraveling the Treatment Effect of Baricitinib on Clinical Progression and Resource Utilization in Hospitalized COVID-19 Patients: Secondary Analysis of the Adaptive COVID-19 Treatment Randomized Trial-2. Open Forum Infect Dis 2022; 9:ofac219. [PMID: 35818363 PMCID: PMC9129131 DOI: 10.1093/ofid/ofac219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/22/2022] [Indexed: 11/12/2022] Open
Abstract
Background The Adaptive COVID Treatment Trial-2 (ACTT-2) found that baricitinib in combination with remdesivir therapy (BCT) sped recovery in hospitalized coronavirus disease 2019 (COVID-19) patients vs remdesivir monotherapy (RMT). We examined how BCT affected progression throughout hospitalization and utilization of intensive respiratory therapies. Methods We characterized the clinical trajectories of 891 ACTT-2 participants requiring supplemental oxygen or higher levels of respiratory support at enrollment. We estimated the effect of BCT on cumulative incidence of clinical improvement and deterioration using competing risks models. We developed multistate models to estimate the effect of BCT on clinical improvement and deterioration and on utilization of respiratory therapies. Results BCT resulted in more linear improvement and lower incidence of clinical deterioration compared with RMT (hazard ratio [HR], 0.74; 95% CI, 0.58 to 0.95). The benefit was pronounced among participants enrolled on high-flow oxygen or noninvasive positive-pressure ventilation. In this group, BCT sped clinical improvement (HR, 1.21; 95% CI, 0.99 to 1.51) while slowing clinical deterioration (HR, 0.71; 95% CI, 0.48 to 1.02), which reduced the expected days in ordinal score (OS) 6 per 100 patients by 74 days (95% CI, -8 to 154 days) and the expected days in OS 7 per 100 patients by 161 days (95% CI, 46 to 291 days) compared with RMT. BCT did not benefit participants who were mechanically ventilated at enrollment. Conclusions Compared with RMT, BCT reduces the clinical burden and utilization of intensive respiratory therapies for patients requiring low-flow oxygen or noninvasive positive-pressure ventilation compared with RMT and may thereby improve care for this patient population.
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Affiliation(s)
- Jonathan Fintzi
- Biostatistics Research Branch, National Institute of Allergy and Infectious Diseases, Rockville, Maryland, USA
| | - Tyler Bonnett
- Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Pablo Tebas
- Division of Infectious Diseases/Clinical Trials Unit, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Vincent C Marconi
- Emory University School of Medicine and Rollins School of Public Health, Emory Vaccine Center, Atlanta Veterans Affairs Medical Center, Atlanta, Georgia, USA
| | - Corri B Levine
- Division of Infectious Disease, Department of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Hana M El Sahly
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
| | - Susan L F McLellan
- Division of Infectious Disease, Department of Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Constance A Benson
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Christina A Rostad
- Division of Infectious Diseases, Department of Pediatrics, Emory University School of Medicine and Children’s Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Anuradha Ganesan
- Division of Infectious Disease, Walter Reed National Military Medical Center, Infectious Disease Clinical Research Program, Uniformed Services University of the Health Sciences, Henry M Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Nikhil Huprikar
- Division of Pulmonary/Critical Care Medicine, Walter Reed National Military Medical Center, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Maria G Frank
- Department of Medicine, Denver Health Hospital Authority, Associate Professor of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Richard A Mularski
- The Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon, USA
| | - Robert L Atmar
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Pauline K Park
- Division of Acute Care Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - William R Short
- Division of Infectious Diseases, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - John H Beigel
- Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, Rockville, Maryland, USA
| | - Aneesh K Mehta
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Daniel A Sweeney
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California, USA
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Perkins L, Fisher E, Felstead C, Rooney C, Wong GHY, Dai R, Vaitheswaran S, Natarajan N, Mograbi DC, Ferri CP, Stott J, Spector A. Delivering Cognitive Stimulation Therapy (CST) Virtually: Developing and Field-Testing a New Framework. Clin Interv Aging 2022; 17:97-116. [PMID: 35173425 PMCID: PMC8841739 DOI: 10.2147/cia.s348906] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/28/2021] [Indexed: 12/21/2022] Open
Abstract
Purpose This feasibility and pilot study aimed to develop and field-test a 14-session virtual Cognitive Stimulation Therapy (vCST) programme for people living with dementia, developed as a result of services moving online during the COVID-19 pandemic. Methods The vCST protocol was developed using the existing group CST manual, through stakeholder consultation with people living with dementia, caregivers, CST group facilitators and dementia service managers. This protocol was then field-tested with 10 groups of people living with dementia in the Brazil, China (Hong Kong), India, Ireland and the UK, and feedback on the protocol was gathered from 14 facilitators. Results Field testing in five countries indicated acceptability to group facilitators and participants. Feedback from these groups was used to refine the developed protocol. The final vCST protocol is proposed, including session materials for delivery of CST over videoconferencing and a framework for offering CST virtually in global settings. Conclusion vCST is a feasible online intervention for many people living with dementia. We recommend that it is offered to those unable to access traditional in-person CST for health reasons, lack of transport or COVID-19 restrictions. Further research is needed to explore if participant outcomes are comparable to in-person CST groups.
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Affiliation(s)
- Luke Perkins
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - Emily Fisher
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
- Correspondence: Emily Fisher, Research Department of Clinical, Educational and Health Psychology, University College London, Gower Street, London, WC1E 6BT, UK, Tel +44 20 7679 5770, Email
| | - Cerne Felstead
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - Claire Rooney
- Occupational Therapy Department, Older Persons Services, Our Lady’s Hospice and Care Services, Harold’s Cross, Dublin, Ireland
| | - Gloria H Y Wong
- Department of Social Work and Social Administration, University of Hong Kong, Hong Kong, Hong Kong
| | - Ruizhi Dai
- Faculty of Social Sciences, University of Hong Kong, Hong Kong, Hong Kong
| | - Sridhar Vaitheswaran
- Dementia Care in Schizophrenia Research Foundation (DEMCARES), Chennai, Tamil Nadu, India
| | - Nirupama Natarajan
- Dementia Care in Schizophrenia Research Foundation (DEMCARES), Chennai, Tamil Nadu, India
| | - Daniel C Mograbi
- Department of Psychology, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Cleusa P Ferri
- Department of Psychiatry, Universidade Federal de São Paulo, São Paulo, Brazil
- Health Technology Assessment Unit, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
| | - Joshua Stott
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - Aimee Spector
- Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
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Schlott AC, Knuepfer E, Green JL, Hobson P, Borg AJ, Morales-Sanfrutos J, Perrin AJ, Maclachlan C, Collinson LM, Snijders AP, Tate EW, Holder AA. Inhibition of protein N-myristoylation blocks Plasmodium falciparum intraerythrocytic development, egress and invasion. PLoS Biol 2021; 19:e3001408. [PMID: 34695132 PMCID: PMC8544853 DOI: 10.1371/journal.pbio.3001408] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/07/2021] [Indexed: 11/29/2022] Open
Abstract
We have combined chemical biology and genetic modification approaches to investigate the importance of protein myristoylation in the human malaria parasite, Plasmodium falciparum. Parasite treatment during schizogony in the last 10 to 15 hours of the erythrocytic cycle with IMP-1002, an inhibitor of N-myristoyl transferase (NMT), led to a significant blockade in parasite egress from the infected erythrocyte. Two rhoptry proteins were mislocalized in the cell, suggesting that rhoptry function is disrupted. We identified 16 NMT substrates for which myristoylation was significantly reduced by NMT inhibitor (NMTi) treatment, and, of these, 6 proteins were substantially reduced in abundance. In a viability screen, we showed that for 4 of these proteins replacement of the N-terminal glycine with alanine to prevent myristoylation had a substantial effect on parasite fitness. In detailed studies of one NMT substrate, glideosome-associated protein 45 (GAP45), loss of myristoylation had no impact on protein location or glideosome assembly, in contrast to the disruption caused by GAP45 gene deletion, but GAP45 myristoylation was essential for erythrocyte invasion. Therefore, there are at least 3 mechanisms by which inhibition of NMT can disrupt parasite development and growth: early in parasite development, leading to the inhibition of schizogony and formation of “pseudoschizonts,” which has been described previously; at the end of schizogony, with disruption of rhoptry formation, merozoite development and egress from the infected erythrocyte; and at invasion, when impairment of motor complex function prevents invasion of new erythrocytes. These results underline the importance of P. falciparum NMT as a drug target because of the pleiotropic effect of its inhibition. Understanding the essential factors needed for malaria parasite development could help us find new therapeutic targets. This study reveals that N-myristoylation is a posttranslational modification of proteins essential for the parasites’ growth and their invasion of red blood cells.
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Affiliation(s)
- Anja C. Schlott
- Malaria Parasitology Laboratory, Francis Crick Institute, London, United Kingdom
- Molecular Sciences Research Hub, Imperial College, London, United Kingdom
| | - Ellen Knuepfer
- Malaria Parasitology Laboratory, Francis Crick Institute, London, United Kingdom
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hatfield, United Kingdom
| | - Judith L. Green
- Malaria Parasitology Laboratory, Francis Crick Institute, London, United Kingdom
| | - Philip Hobson
- Flow Cytometry Science Technology Platform, Francis Crick Institute, London, United Kingdom
| | - Aaron J. Borg
- Mass Spectrometry Proteomics Science Technology Platform, Francis Crick Institute, London, United Kingdom
| | | | - Abigail J. Perrin
- Malaria Biochemistry Laboratory, Francis Crick Institute, London, United Kingdom
| | - Catherine Maclachlan
- Electron Microscopy Science Technology Platform, Francis Crick Institute, London, United Kingdom
| | - Lucy M. Collinson
- Electron Microscopy Science Technology Platform, Francis Crick Institute, London, United Kingdom
| | - Ambrosius P. Snijders
- Mass Spectrometry Proteomics Science Technology Platform, Francis Crick Institute, London, United Kingdom
| | - Edward W. Tate
- Molecular Sciences Research Hub, Imperial College, London, United Kingdom
- Francis Crick Institute, London, United Kingdom
- * E-mail: (EWT); (AAH)
| | - Anthony A. Holder
- Malaria Parasitology Laboratory, Francis Crick Institute, London, United Kingdom
- * E-mail: (EWT); (AAH)
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Davies NG, Abbott S, Barnard RC, Jarvis CI, Kucharski AJ, Munday JD, Pearson CAB, Russell TW, Tully DC, Washburne AD, Wenseleers T, Gimma A, Waites W, Wong KLM, van Zandvoort K, Silverman JD, Diaz-Ordaz K, Keogh R, Eggo RM, Funk S, Jit M, Atkins KE, Edmunds WJ. Estimated transmissibility and impact of SARS-CoV-2 lineage B.1.1.7 in England. Science 2021; 372:eabg3055. [PMID: 33658326 PMCID: PMC8128288 DOI: 10.1126/science.abg3055] [Citation(s) in RCA: 1548] [Impact Index Per Article: 516.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/26/2021] [Indexed: 12/12/2022]
Abstract
A severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant, VOC 202012/01 (lineage B.1.1.7), emerged in southeast England in September 2020 and is rapidly spreading toward fixation. Using a variety of statistical and dynamic modeling approaches, we estimate that this variant has a 43 to 90% (range of 95% credible intervals, 38 to 130%) higher reproduction number than preexisting variants. A fitted two-strain dynamic transmission model shows that VOC 202012/01 will lead to large resurgences of COVID-19 cases. Without stringent control measures, including limited closure of educational institutions and a greatly accelerated vaccine rollout, COVID-19 hospitalizations and deaths across England in the first 6 months of 2021 were projected to exceed those in 2020. VOC 202012/01 has spread globally and exhibits a similar transmission increase (59 to 74%) in Denmark, Switzerland, and the United States.
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Affiliation(s)
- Nicholas G Davies
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK.
| | - Sam Abbott
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Rosanna C Barnard
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Christopher I Jarvis
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Adam J Kucharski
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - James D Munday
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Carl A B Pearson
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Timothy W Russell
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Damien C Tully
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | | | - Tom Wenseleers
- Lab of Socioecology and Social Evolution, KU Leuven, Leuven, Belgium
| | - Amy Gimma
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - William Waites
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Kerry L M Wong
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Kevin van Zandvoort
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Justin D Silverman
- College of Information Science and Technology, Pennsylvania State University, University Park, PA, USA
| | - Karla Diaz-Ordaz
- Centre for Statistical Methodology and Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK
| | - Ruth Keogh
- Centre for Statistical Methodology and Department of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK
| | - Rosalind M Eggo
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Sebastian Funk
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Mark Jit
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Katherine E Atkins
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
- Centre for Global Health, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - W John Edmunds
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, London, UK
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8
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Rihn SJ, Merits A, Bakshi S, Turnbull ML, Wickenhagen A, Alexander AJT, Baillie C, Brennan B, Brown F, Brunker K, Bryden SR, Burness KA, Carmichael S, Cole SJ, Cowton VM, Davies P, Davis C, De Lorenzo G, Donald CL, Dorward M, Dunlop JI, Elliott M, Fares M, da Silva Filipe A, Freitas JR, Furnon W, Gestuveo RJ, Geyer A, Giesel D, Goldfarb DM, Goodman N, Gunson R, Hastie CJ, Herder V, Hughes J, Johnson C, Johnson N, Kohl A, Kerr K, Leech H, Lello LS, Li K, Lieber G, Liu X, Lingala R, Loney C, Mair D, McElwee MJ, McFarlane S, Nichols J, Nomikou K, Orr A, Orton RJ, Palmarini M, Parr YA, Pinto RM, Raggett S, Reid E, Robertson DL, Royle J, Cameron-Ruiz N, Shepherd JG, Smollett K, Stewart DG, Stewart M, Sugrue E, Szemiel AM, Taggart A, Thomson EC, Tong L, Torrie LS, Toth R, Varjak M, Wang S, Wilkinson SG, Wyatt PG, Zusinaite E, Alessi DR, Patel AH, Zaid A, Wilson SJ, Mahalingam S. A plasmid DNA-launched SARS-CoV-2 reverse genetics system and coronavirus toolkit for COVID-19 research. PLoS Biol 2021; 19:e3001091. [PMID: 33630831 PMCID: PMC7906417 DOI: 10.1371/journal.pbio.3001091] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/05/2021] [Indexed: 12/30/2022] Open
Abstract
The recent emergence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the underlying cause of Coronavirus Disease 2019 (COVID-19), has led to a worldwide pandemic causing substantial morbidity, mortality, and economic devastation. In response, many laboratories have redirected attention to SARS-CoV-2, meaning there is an urgent need for tools that can be used in laboratories unaccustomed to working with coronaviruses. Here we report a range of tools for SARS-CoV-2 research. First, we describe a facile single plasmid SARS-CoV-2 reverse genetics system that is simple to genetically manipulate and can be used to rescue infectious virus through transient transfection (without in vitro transcription or additional expression plasmids). The rescue system is accompanied by our panel of SARS-CoV-2 antibodies (against nearly every viral protein), SARS-CoV-2 clinical isolates, and SARS-CoV-2 permissive cell lines, which are all openly available to the scientific community. Using these tools, we demonstrate here that the controversial ORF10 protein is expressed in infected cells. Furthermore, we show that the promising repurposed antiviral activity of apilimod is dependent on TMPRSS2 expression. Altogether, our SARS-CoV-2 toolkit, which can be directly accessed via our website at https://mrcppu-covid.bio/, constitutes a resource with considerable potential to advance COVID-19 vaccine design, drug testing, and discovery science.
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Affiliation(s)
- Suzannah J. Rihn
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Andres Merits
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Siddharth Bakshi
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Matthew L. Turnbull
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Arthur Wickenhagen
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | | | - Carla Baillie
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Benjamin Brennan
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Fiona Brown
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Kirstyn Brunker
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Steven R. Bryden
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Kerry A. Burness
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Stephen Carmichael
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Sarah J. Cole
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Vanessa M. Cowton
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Paul Davies
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Chris Davis
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Giuditta De Lorenzo
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Claire L. Donald
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Mark Dorward
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - James I. Dunlop
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Matthew Elliott
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Mazigh Fares
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Ana da Silva Filipe
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Joseph R. Freitas
- Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Wilhelm Furnon
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Rommel J. Gestuveo
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
- Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, Miagao, Iloilo, Philippines
| | - Anna Geyer
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Daniel Giesel
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Daniel M. Goldfarb
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Nicola Goodman
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Rory Gunson
- West of Scotland Specialist Virology Centre, Glasgow, United Kingdom
| | - C. James Hastie
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Vanessa Herder
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Joseph Hughes
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Clare Johnson
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Natasha Johnson
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Alain Kohl
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Karen Kerr
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Hannah Leech
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | | | - Kathy Li
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Gauthier Lieber
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Xiang Liu
- Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Rajendra Lingala
- Indian Immunologicals Ltd (IIL), Rakshapuram, Gachibowli Post, Hyderabad Telangana, India
| | - Colin Loney
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Daniel Mair
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Marion J. McElwee
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Steven McFarlane
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Jenna Nichols
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Kyriaki Nomikou
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Anne Orr
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Richard J. Orton
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Massimo Palmarini
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Yasmin A. Parr
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Rute Maria Pinto
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Samantha Raggett
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Elaine Reid
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - David L. Robertson
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Jamie Royle
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Natalia Cameron-Ruiz
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - James G. Shepherd
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Katherine Smollett
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Douglas G. Stewart
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Meredith Stewart
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Elena Sugrue
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Agnieszka M. Szemiel
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Aislynn Taggart
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Emma C. Thomson
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Lily Tong
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Leah S. Torrie
- Drug Discovery Unit (DDU), Wellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Rachel Toth
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Margus Varjak
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Sainan Wang
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Stuart G. Wilkinson
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Paul G. Wyatt
- Drug Discovery Unit (DDU), Wellcome Centre for Anti-Infectives Research, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Eva Zusinaite
- Institute of Technology, University of Tartu, Tartu, Estonia
| | - Dario R. Alessi
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, United Kingdom
| | - Arvind H. Patel
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Ali Zaid
- Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Medical Sciences, Griffith University, Gold Coast, Queensland, Australia
| | - Sam J. Wilson
- MRC-University of Glasgow Centre for Virus Research (CVR), Glasgow, United Kingdom
| | - Suresh Mahalingam
- Emerging Viruses, Inflammation and Therapeutics Group, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
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Lines KE, Nachtigall LB, Dichtel LE, Cranston T, Boon H, Zhang X, Kooblall KG, Stevenson M, Thakker RV. Multiple Endocrine Neoplasia Type 1 (MEN1) Phenocopy Due to a Cell Cycle Division 73 ( CDC73) Variant. J Endocr Soc 2020; 4:bvaa142. [PMID: 33150274 PMCID: PMC7594654 DOI: 10.1210/jendso/bvaa142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023] Open
Abstract
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder characterized by the combined occurrence of parathyroid tumors, pituitary adenomas, and pancreatic neuroendocrine neoplasms (PNENs). MEN1 is caused by germline MEN1 mutations in > 75% of patients, and the remaining 25% of patients may have mutations in unidentified genes or represent phenocopies with mutations in genes such as cell cycle division 73 (CDC73), the calcium sensing receptor (CASR), and cyclin-dependent kinase inhibitor 1B (CDKN1B), which are associated with the hyperparathyroidism-jaw tumor syndrome, familial hypocalciuric hypercalcemia type 1, and MEN4, respectively. Here, we report a heterozygous c.1138C>T (p.Leu380Phe) CDC73 germline variant in a clinically diagnosed MEN1 patient, based on combined occurrence of primary hyperparathyroidism, acromegaly, and a PNEN. Characterization of the PNEN confirmed it was a neuroendocrine neoplasm as it immuno-stained positively for chromogranin and glucagon. The rare variant p.Leu380Phe occurred in a highly conserved residue, and further analysis using RNA-Scope indicated that it was associated with a significant reduction in CDC73 expression in the PNEN. Previously, CDC73 mutations have been reported to be associated with tumors of the parathyroids, kidneys, uterus, and exocrine pancreas. Thus, our report of a patient with PNEN and somatotrophinoma who had a CDC73 variant, provides further evidence that CDC73 variants may result in a MEN1 phenocopy.
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Affiliation(s)
- Kate E Lines
- Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Lisa B Nachtigall
- Neuroendocrine Unit, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts
| | - Laura E Dichtel
- Neuroendocrine Unit, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts
| | - Treena Cranston
- Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Hannah Boon
- Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Xun Zhang
- Neuroendocrine Unit, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts
| | - Kreepa G Kooblall
- Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Mark Stevenson
- Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
| | - Rajesh V Thakker
- Academic Endocrine Unit, OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK
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Dalgleish T, Black M, Johnston D, Bevan A. Transdiagnostic approaches to mental health problems: Current status and future directions. J Consult Clin Psychol 2020; 88:179-195. [PMID: 32068421 PMCID: PMC7027356 DOI: 10.1037/ccp0000482] [Citation(s) in RCA: 231] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 12/19/2022]
Abstract
Despite a longstanding and widespread influence of the diagnostic approach to mental ill health, there is an emerging and growing consensus that such psychiatric nosologies may no longer be fit for purpose in research and clinical practice. In their place, there is gathering support for a "transdiagnostic" approach that cuts across traditional diagnostic boundaries or, more radically, sets them aside altogether, to provide novel insights into how we might understand mental health difficulties. Removing the distinctions between proposed psychiatric taxa at the level of classification opens up new ways of classifying mental health problems, suggests alternative conceptualizations of the processes implicated in mental health, and provides a platform for novel ways of thinking about onset, maintenance, and clinical treatment and recovery from experiences of disabling mental distress. In this Introduction to a Special Section on Transdiagnostic Approaches to Psychopathology, we provide a narrative review of the transdiagnostic literature in order to situate the Special Section articles in context. We begin with a brief history of the diagnostic approach and outline several challenges it currently faces that arguably limit its applicability in current mental health science and practice. We then review several recent transdiagnostic approaches to classification, biopsychosocial processes, and clinical interventions, highlighting promising novel developments. Finally, we present some key challenges facing transdiagnostic science and make suggestions for a way forward. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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Affiliation(s)
- Tim Dalgleish
- Medical Research Council Cognition and Brain Sciences Unit, University of Cambridge
| | - Melissa Black
- Medical Research Council Cognition and Brain Sciences Unit, University of Cambridge
| | - David Johnston
- Medical Research Council Cognition and Brain Sciences Unit, University of Cambridge
| | - Anna Bevan
- Medical Research Council Cognition and Brain Sciences Unit, University of Cambridge
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Abstract
At the end of compulsory schooling, young adults decide on educational and occupational trajectories that impact their subsequent employability, health and even life expectancy. To understand the antecedents to these decisions, we follow a new approach that considers genetic contributions, which have largely been ignored before. Using genomewide polygenic scores (EA3) from the most recent genomewide association study of years of education in 1.1 million individuals, we tested for genetic influence on early adult decisions in a United Kingdom-representative sample of 5,839 at 18 years of age. EA3 significantly predicted educational trajectories in early adulthood (Nagelkerke R2 = 10%), χ2(4) = 571.77, p < .001, indicating that young adults partly adapt their aspirations to their genetic propensities-a concept known as gene-environment correlation. Compared to attending university, a 1 standard deviation increase in EA3 was associated on average with a 51% reduction in the odds of pursuing full-time employment (OR = .47; 95% CI [.43, .51]); an apprenticeship (OR = .49; 95% CI [.45, .54]); or not going in education, employment, or training (OR = .50; 95% CI [.41, .60]). EA3 associations were attenuated when controlling for previous academic achievement and family socioeconomic status. Overall this research illustrates how DNA-based predictions offer novel opportunities for studying the sociodevelopmental structures of life outcomes. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Affiliation(s)
- Ziada Ayorech
- King's College London, MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, SE5 8AF, UK
| | - Robert Plomin
- King's College London, MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, SE5 8AF, UK
| | - Sophie von Stumm
- Department of Education, University of York, University of York, Heslington, York, YO10 5DD, UK
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12
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Falconer CJ, Lobmaier JS, Christoforou M, Kamboj SK, King JA, Gilbert P, Brewin CR. Compassionate faces: Evidence for distinctive facial expressions associated with specific prosocial motivations. PLoS One 2019; 14:e0210283. [PMID: 30673735 PMCID: PMC6343863 DOI: 10.1371/journal.pone.0210283] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/19/2018] [Indexed: 01/18/2023] Open
Abstract
Compassion is a complex cognitive, emotional and behavioural process that has important real-world consequences for the self and others. Considering this, it is important to understand how compassion is communicated. The current research investigated the expression and perception of compassion via the face. We generated exemplar images of two compassionate facial expressions induced from two mental imagery tasks with different compassionate motivations (Study 1). Our kind- and empathic compassion faces were perceived differently and the empathic-compassion expression was perceived as best depicting the general definition of compassion (Study 2). Our two composite faces differed in their perceived happiness, kindness, sadness, fear and concern, which speak to their underling motivation and emotional resonance. Finally, both faces were accurately discriminated when presented along a compassion continuum (Study 3). Our results demonstrate two perceptually and functionally distinct facial expressions of compassion, with potentially different consequences for the suffering of others.
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Affiliation(s)
- Caroline J. Falconer
- Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
| | | | - Marina Christoforou
- Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
| | - Sunjeev K. Kamboj
- Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
| | - John A. King
- Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
| | - Paul Gilbert
- Mental Health Research Unit, University of Derby, Derby, United Kingdom
| | - Chris R. Brewin
- Department of Clinical, Educational and Health Psychology, University College London, London, United Kingdom
- * E-mail:
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Rhein J, Hullsiek KH, Evans EE, Tugume L, Nuwagira E, Ssebambulidde K, Kiggundu R, Mpoza E, Musubire AK, Bangdiwala AS, Bahr NC, Williams DA, Abassi M, Muzoora C, Meya DB, Boulware DR. Detrimental Outcomes of Unmasking Cryptococcal Meningitis With Recent ART Initiation. Open Forum Infect Dis 2018; 5:ofy122. [PMID: 30094292 PMCID: PMC6080052 DOI: 10.1093/ofid/ofy122] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 05/21/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Increased antiretroviral therapy (ART) availability has been associated with more patients developing cryptococcosis after ART initiation. Despite this changing epidemiology, data regarding cryptococcal meningitis in those already receiving ART are limited. We compared clinical presentations and outcomes among ART-naïve and ART-experienced Ugandans. METHODS We prospectively enrolled 605 HIV-infected persons with first-episode cryptococcal meningitis from August 2013 to May 2017 who received amphotericin-based combination therapy. We classified participants by ART status and ART duration and compared groups for 2-week survival. RESULTS Overall, 46% (281/605) of participants were receiving ART at presentation. Compared with those not receiving ART, those receiving ART had higher CD4 counts (P < .001) and lower cerebrospinal fluid fungal burdens (P < .001). Of those receiving ART, 56% (156/281) initiated ART within 6 months, and 18% (51/281) initiated ART within 14 days. Two-week mortality did not differ by ART status (27% in both ART-naïve and ART-experienced%; P > .99). However, 47% (24/51) of those receiving ART for ≤14 days died within 2 weeks, compared with 19% (20/105) of those receiving ART for 15-182 days and 26% (32/125) of those receiving ART for >6 months (P < .001). Among persons receiving ART for >6 months, 87% had HIV viral loads >1000 copies/mL. CONCLUSIONS Cryptococcosis after ART initiation is common in Africa. Patients initiating ART who unmask cryptococcal meningitis are at a high risk of death. Immune recovery in the setting of central nervous system infection is detrimental, and management of this population requires further study. Implementing pre-ART cryptococcal antigen screening is urgently needed to prevent cryptococcal meningitis after ART initiation.
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Affiliation(s)
- Joshua Rhein
- University of Minnesota, Minneapolis, Minneapolis
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Emily E Evans
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - Lillian Tugume
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Edwin Nuwagira
- Mbarara University of Science and Technology, Mbarara, Uganda
| | | | - Reuben Kiggundu
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Edward Mpoza
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Abdu K Musubire
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | | | - Nathan C Bahr
- University of Minnesota, Minneapolis, Minneapolis
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Darlisha A Williams
- University of Minnesota, Minneapolis, Minneapolis
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Mahsa Abassi
- University of Minnesota, Minneapolis, Minneapolis
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
| | - Conrad Muzoora
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - David B Meya
- Infectious Diseases Institute, Makerere University, Kampala, Uganda
- School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
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Yang S, Martin RM, Oken E, Hameza M, Doniger G, Amit S, Patel R, Thompson J, Rifas-Shiman SL, Vilchuck K, Bogdanovich N, Kramer MS. Breastfeeding during infancy and neurocognitive function in adolescence: 16-year follow-up of the PROBIT cluster-randomized trial. PLoS Med 2018; 15:e1002554. [PMID: 29677187 PMCID: PMC5909901 DOI: 10.1371/journal.pmed.1002554] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 03/15/2018] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Evidence on the long-term effect of breastfeeding on neurocognitive development is based almost exclusively on observational studies. In the 16-year follow-up study of a large, cluster-randomized trial of a breastfeeding promotion intervention, we evaluated the long-term persistence of the neurocognitive benefits of the breastfeeding promotion intervention previously observed at early school age. METHODS AND FINDINGS A total of 13,557 participants (79.5% of the 17,046 randomized) of the Promotion of Breastfeeding Intervention Trial (PROBIT) were followed up at age 16 from September 2012 to July 2015. At the follow-up, neurocognitive function was assessed in 7 verbal and nonverbal cognitive domains using a computerized, self-administered test battery among 13,427 participants. Using an intention-to-treat (ITT) analysis as our prespecified primary analysis, we estimated cluster- and baseline characteristic-adjusted mean differences between the intervention (prolonged and exclusive breastfeeding promotion modelled on the Baby-Friendly Hospital Initiative) and control (usual care) groups in 7 cognitive domains and a global cognitive score. In our prespecified secondary analysis, we estimated mean differences by instrumental variable (IV) analysis to account for noncompliance with the randomly assigned intervention and estimate causal effects of breastfeeding. The 16-year follow-up rates were similar in the intervention (79.7%) and control groups (79.3%), and baseline characteristics were comparable between the two. In the cluster-adjusted ITT analyses, children in the intervention group did not show statistically significant differences in the scores from children in the control group. Prespecified additional adjustment for baseline characteristics improved statistical precision and resulted in slightly higher scores among children in the intervention for verbal function (1.4 [95% CI 0.3-2.5]) and memory (1.2 [95% CI 0.01-2.4]). IV analysis showed that children who were exclusively breastfed for ≥3 (versus <3) months had a 3.5-point (95% CI 0.9-6.1) higher verbal function, but no differences were observed in other domains. While our computerized, self-administered cognitive testing reduced the cluster-level variability in the scores, it may have increased individual-level measurement errors in adolescents. CONCLUSIONS We observed no benefit of a breastfeeding promotion intervention on overall neurocognitive function. The only beneficial effect was on verbal function at age 16. The higher verbal ability is consistent with results observed at early school age; however, the effect size was substantially smaller in adolescence. PROBIT TRIAL REGISTRATION ClinicalTrials.gov NCT01561612.
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Affiliation(s)
- Seungmi Yang
- Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Richard M. Martin
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
- University Hospitals Bristol NHS Foundation Trust National Institute for Health Research Bristol Nutrition Biomedical Research Unit, University of Bristol, Bristol, United Kingdom
| | - Emily Oken
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America
| | - Mikhail Hameza
- National Research and Applied Medicine Mother and Child Centre, Minsk, Republic of Belarus
| | - Glen Doniger
- NeuroTrax Corporation, Medina, New York, United States of America
| | - Shimon Amit
- NeuroTrax Corporation, Medina, New York, United States of America
| | - Rita Patel
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Jennifer Thompson
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America
| | - Sheryl L. Rifas-Shiman
- Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America
| | - Konstantin Vilchuck
- National Research and Applied Medicine Mother and Child Centre, Minsk, Republic of Belarus
| | - Natalia Bogdanovich
- National Research and Applied Medicine Mother and Child Centre, Minsk, Republic of Belarus
| | - Michael S. Kramer
- Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Department of Pediatrics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
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Kumaran E, Doum D, Keo V, Sokha L, Sam B, Chan V, Alexander N, Bradley J, Liverani M, Prasetyo DB, Rachmat A, Lopes S, Hii J, Rithea L, Shafique M, Hustedt J. Dengue knowledge, attitudes and practices and their impact on community-based vector control in rural Cambodia. PLoS Negl Trop Dis 2018; 12:e0006268. [PMID: 29451879 PMCID: PMC5833285 DOI: 10.1371/journal.pntd.0006268] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 03/01/2018] [Accepted: 01/24/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Globally there are an estimated 390 million dengue infections per year, of which 96 million are clinically apparent. In Cambodia, estimates suggest as many as 185,850 cases annually. The World Health Organization global strategy for dengue prevention aims to reduce mortality rates by 50% and morbidity by 25% by 2020. The adoption of integrated vector management approach using community-based methods tailored to the local context is one of the recommended strategies to achieve these objectives. Understanding local knowledge, attitudes and practices is therefore essential to designing suitable strategies to fit each local context. METHODS AND FINDINGS A Knowledge, Attitudes and Practices survey in 600 randomly chosen households was administered in 30 villages in Kampong Cham which is one of the most populated provinces of Cambodia. KAP surveys were administered to a sub-sample of households where an entomology survey was conducted (1200 households), during which Aedes larval/pupae and adult female Aedes mosquito densities were recorded. Participants had high levels of knowledge regarding the transmission of dengue, Aedes breeding, and biting prevention methods; the majority of participants believed they were at risk and that dengue transmission is preventable. However, self-reported vector control practices did not match observed practices recorded in our surveys. No correlation was found between knowledge and observed practices either. CONCLUSION An education campaign regarding dengue prevention in this setting with high knowledge levels is unlikely to have any significant effect on practices unless it is incorporated in a more comprehensive strategy for behavioural change, such a COMBI method, which includes behavioural models as well as communication and marketing theory and practice. TRIAL REGISTRATION ISRCTN85307778.
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Affiliation(s)
- Emmanuelle Kumaran
- Technical Department, Malaria Consortium, Phnom Penh, Cambodia
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
- * E-mail:
| | - Dyna Doum
- Technical Department, Malaria Consortium, Phnom Penh, Cambodia
| | - Vanney Keo
- Technical Department, Malaria Consortium, Phnom Penh, Cambodia
| | - Ly Sokha
- National Dengue Control Program, National Center of Parasitology, Entomology and Malaria Control, Ministry of Health, Phnom Penh, Cambodia
| | - BunLeng Sam
- National Dengue Control Program, National Center of Parasitology, Entomology and Malaria Control, Ministry of Health, Phnom Penh, Cambodia
| | - Vibol Chan
- Malaria and other Vector-borne and Parasitic diseases Office of the WHO Representative in Cambodia, World Health Organization, Phnom Penh, Cambodia
| | - Neal Alexander
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
| | - John Bradley
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
| | - Marco Liverani
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
| | | | - Agus Rachmat
- Data Analyst Unit, US Naval Medical Research Unit-2, Phnom Penh, Cambodia
| | - Sergio Lopes
- Technical Department, Malaria Consortium, Phnom Penh, Cambodia
| | - Jeffrey Hii
- Technical Department, Malaria Consortium, Phnom Penh, Cambodia
| | - Leang Rithea
- National Dengue Control Program, National Center of Parasitology, Entomology and Malaria Control, Ministry of Health, Phnom Penh, Cambodia
| | | | - John Hustedt
- Technical Department, Malaria Consortium, Phnom Penh, Cambodia
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
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