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Chitre SD, Crews CM, Tessema MT, Plėštytė-Būtienė I, Coffee M, Richardson ET. The impact of anthropogenic climate change on pediatric viral diseases. Pediatr Res 2024; 95:496-507. [PMID: 38057578 PMCID: PMC10872406 DOI: 10.1038/s41390-023-02929-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/12/2023] [Accepted: 11/16/2023] [Indexed: 12/08/2023]
Abstract
The adverse effects of climate change on human health are unfolding in real time. Environmental fragmentation is amplifying spillover of viruses from wildlife to humans. Increasing temperatures are expanding mosquito and tick habitats, introducing vector-borne viruses into immunologically susceptible populations. More frequent flooding is spreading water-borne viral pathogens, while prolonged droughts reduce regional capacity to prevent and respond to disease outbreaks with adequate water, sanitation, and hygiene resources. Worsening air quality and altered transmission seasons due to an increasingly volatile climate may exacerbate the impacts of respiratory viruses. Furthermore, both extreme weather events and long-term climate variation are causing the destruction of health systems and large-scale migrations, reshaping health care delivery in the face of an evolving global burden of viral disease. Because of their immunological immaturity, differences in physiology (e.g., size), dependence on caregivers, and behavioral traits, children are particularly vulnerable to climate change. This investigation into the unique pediatric viral threats posed by an increasingly inhospitable world elucidates potential avenues of targeted programming and uncovers future research questions to effect equitable, actionable change. IMPACT: A review of the effects of climate change on viral threats to pediatric health, including zoonotic, vector-borne, water-borne, and respiratory viruses, as well as distal threats related to climate-induced migration and health systems. A unique focus on viruses offers a more in-depth look at the effect of climate change on vector competence, viral particle survival, co-morbidities, and host behavior. An examination of children as a particularly vulnerable population provokes programming tailored to their unique set of vulnerabilities and encourages reflection on equitable climate adaptation frameworks.
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Affiliation(s)
- Smit D Chitre
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
| | - Cecilia M Crews
- Heilbrunn Department of Population & Family Health, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Mesfin Teklu Tessema
- Heilbrunn Department of Population & Family Health, Columbia University Mailman School of Public Health, New York, NY, USA.
- International Rescue Committee, New York, NY, USA.
| | | | - Megan Coffee
- Heilbrunn Department of Population & Family Health, Columbia University Mailman School of Public Health, New York, NY, USA
- International Rescue Committee, New York, NY, USA
- New York University Grossman School of Medicine, New York, NY, USA
| | - Eugene T Richardson
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
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2
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Kwasnik M, Rola J, Rozek W. Tick-Borne Encephalitis-Review of the Current Status. J Clin Med 2023; 12:6603. [PMID: 37892741 PMCID: PMC10607749 DOI: 10.3390/jcm12206603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/01/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
The tick-borne encephalitis virus (TBEV) is the arboviral etiological agent of tick-borne encephalitis (TBE), considered to be one of the most important tick-borne viral diseases in Europe and Asia. In recent years, an increase in the incidence of TBE as well as an increasing geographical range of the disease have been noted. Despite the COVID-19 pandemic and the imposition of restrictions that it necessitated, the incidence of TBE is rising in more than half of the European countries analyzed in recent studies. The virus is transmitted between ticks, animals, and humans. It seems that ticks and small mammals play a role in maintaining TBEV in nature. The disease can also affect dogs, horses, cattle, and small ruminants. Humans are incidental hosts, infected through the bite of an infected tick or by the alimentary route, through the consumption of unpasteurized milk or milk products from TBEV-infected animals. TBEV infections in humans may be asymptomatic, but the symptoms can range from mild flu-like to severe neurological. In Europe, cases of TBE are reported every year. While there is currently no effective treatment for TBE, immunization and protection against tick bites are critical in preventing this disease.
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Affiliation(s)
- Malgorzata Kwasnik
- Department of Virology, National Veterinary Research Institute, Al. Partyzantow 57, 24-100 Pulawy, Poland; (J.R.); (W.R.)
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3
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Kim CL, Agampodi S, Marks F, Kim JH, Excler JL. Mitigating the effects of climate change on human health with vaccines and vaccinations. Front Public Health 2023; 11:1252910. [PMID: 37900033 PMCID: PMC10602790 DOI: 10.3389/fpubh.2023.1252910] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/04/2023] [Indexed: 10/31/2023] Open
Abstract
Climate change represents an unprecedented threat to humanity and will be the ultimate challenge of the 21st century. As a public health consequence, the World Health Organization estimates an additional 250,000 deaths annually by 2030, with resource-poor countries being predominantly affected. Although climate change's direct and indirect consequences on human health are manifold and far from fully explored, a growing body of evidence demonstrates its potential to exacerbate the frequency and spread of transmissible infectious diseases. Effective, high-impact mitigation measures are critical in combating this global crisis. While vaccines and vaccination are among the most cost-effective public health interventions, they have yet to be established as a major strategy in climate change-related health effect mitigation. In this narrative review, we synthesize the available evidence on the effect of climate change on vaccine-preventable diseases. This review examines the direct effect of climate change on water-related diseases such as cholera and other enteropathogens, helminthic infections and leptospirosis. It also explores the effects of rising temperatures on vector-borne diseases like dengue, chikungunya, and malaria, as well as the impact of temperature and humidity on airborne diseases like influenza and respiratory syncytial virus infection. Recent advances in global vaccine development facilitate the use of vaccines and vaccination as a mitigation strategy in the agenda against climate change consequences. A focused evaluation of vaccine research and development, funding, and distribution related to climate change is required.
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Affiliation(s)
- Cara Lynn Kim
- International Vaccine Institute, Seoul, Republic of Korea
| | - Suneth Agampodi
- International Vaccine Institute, Seoul, Republic of Korea
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, United States
| | - Florian Marks
- International Vaccine Institute, Seoul, Republic of Korea
- Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom
- Madagascar Institute for Vaccine Research, University of Antananarivo, Antananarivo, Madagascar
- Heidelberg Institute of Global Health, University of Heidelberg, Heidelberg, Germany
| | - Jerome H. Kim
- International Vaccine Institute, Seoul, Republic of Korea
- College of Natural Sciences, Seoul National University, Seoul, Republic of Korea
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4
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Pustijanac E, Buršić M, Talapko J, Škrlec I, Meštrović T, Lišnjić D. Tick-Borne Encephalitis Virus: A Comprehensive Review of Transmission, Pathogenesis, Epidemiology, Clinical Manifestations, Diagnosis, and Prevention. Microorganisms 2023; 11:1634. [PMID: 37512806 PMCID: PMC10383662 DOI: 10.3390/microorganisms11071634] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/13/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Tick-borne encephalitis virus (TBEV), a member of the Flaviviridae family, can cause serious infection of the central nervous system in humans, resulting in potential neurological complications and fatal outcomes. TBEV is primarily transmitted to humans through infected tick bites, and the viral agent circulates between ticks and animals, such as deer and small mammals. The occurrence of the infection aligns with the seasonal activity of ticks. As no specific antiviral therapy exists for TBEV infection, treatment approaches primarily focus on symptomatic relief and support. Active immunization is highly effective, especially for individuals in endemic areas. The burden of TBEV infections is increasing, posing a growing health concern. Reported incidence rates rose from 0.4 to 0.9 cases per 100,000 people between 2015 and 2020. The Baltic and Central European countries have the highest incidence, but TBE is endemic across a wide geographic area. Various factors, including social and environmental aspects, improved medical awareness, and advanced diagnostics, have contributed to the observed increase. Diagnosing TBEV infection can be challenging due to the non-specific nature of the initial symptoms and potential co-infections. Accurate diagnosis is crucial for appropriate management, prevention of complications, and effective control measures. In this comprehensive review, we summarize the molecular structure of TBEV, its transmission and circulation in natural environments, the pathogenesis of TBEV infection, the epidemiology and global distribution of the virus, associated risk factors, clinical manifestations, and diagnostic approaches. By improving understanding of these aspects, we aim to enhance knowledge and promote strategies for timely and accurate diagnosis, appropriate management, and the implementation of effective control measures against TBEV infections.
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Affiliation(s)
- Emina Pustijanac
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, 52100 Pula, Croatia
| | - Moira Buršić
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, 52100 Pula, Croatia
| | - Jasminka Talapko
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
| | - Ivana Škrlec
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
| | - Tomislav Meštrović
- University Centre Varaždin, University North, 42000 Varaždin, Croatia
- Institute for Health Metrics and Evaluation and the Department of Health Metrics Sciences, University of Washington, Seattle, WA 98195, USA
| | - Dubravka Lišnjić
- Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31000 Osijek, Croatia
- Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Josipa Huttlera 4, 31000 Osijek, Croatia
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5
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Saegerman C, Humblet MF, Leandri M, Gonzalez G, Heyman P, Sprong H, L’Hostis M, Moutailler S, Bonnet SI, Haddad N, Boulanger N, Leib SL, Hoch T, Thiry E, Bournez L, Kerlik J, Velay A, Jore S, Jourdain E, Gilot-Fromont E, Brugger K, Geller J, Studahl M, Knap N, Avšič-Županc T, Růžek D, Zomer TP, Bødker R, Berger TFH, Martin-Latil S, De Regge N, Raffetin A, Lacour SA, Klein M, Lernout T, Quillery E, Hubálek Z, Ruiz-Fons F, Estrada-Peña A, Fravalo P, Kooh P, Etore F, Gossner CM, Purse B. First Expert Elicitation of Knowledge on Possible Drivers of Observed Increasing Human Cases of Tick-Borne Encephalitis in Europe. Viruses 2023; 15:v15030791. [PMID: 36992499 PMCID: PMC10054665 DOI: 10.3390/v15030791] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/11/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
Tick-borne encephalitis (TBE) is a viral disease endemic in Eurasia. The virus is mainly transmitted to humans via ticks and occasionally via the consumption of unpasteurized milk products. The European Centre for Disease Prevention and Control reported an increase in TBE incidence over the past years in Europe as well as the emergence of the disease in new areas. To better understand this phenomenon, we investigated the drivers of TBE emergence and increase in incidence in humans through an expert knowledge elicitation. We listed 59 possible drivers grouped in eight domains and elicited forty European experts to: (i) allocate a score per driver, (ii) weight this score within each domain, and (iii) weight the different domains and attribute an uncertainty level per domain. An overall weighted score per driver was calculated, and drivers with comparable scores were grouped into three terminal nodes using a regression tree analysis. The drivers with the highest scores were: (i) changes in human behavior/activities; (ii) changes in eating habits or consumer demand; (iii) changes in the landscape; (iv) influence of humidity on the survival and transmission of the pathogen; (v) difficulty to control reservoir(s) and/or vector(s); (vi) influence of temperature on virus survival and transmission; (vii) number of wildlife compartments/groups acting as reservoirs or amplifying hosts; (viii) increase of autochthonous wild mammals; and (ix) number of tick species vectors and their distribution. Our results support researchers in prioritizing studies targeting the most relevant drivers of emergence and increasing TBE incidence.
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Affiliation(s)
- Claude Saegerman
- Fundamental and Applied Research for Animal and Health (FARAH) Center, University of Liege, 4000 Liege, Belgium
- Correspondence:
| | - Marie-France Humblet
- Department for Occupational Protection and Hygiene, Unit Biosafety, Biosecurity and Environmental Licences, University of Liege, 4000 Liege, Belgium
| | - Marc Leandri
- UMI SOURCE, Université Paris-Saclay—UVSQ, 78000 Versailles, France
| | - Gaëlle Gonzalez
- ANSES, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR VIROLOGIE, Laboratoire de Santé Animale, 94700 Maisons-Alfort, France
| | | | - Hein Sprong
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, 3720 MA Bilthoven, The Netherlands
| | - Monique L’Hostis
- Ecole Nationale Vétérinaire Agroalimentaire et de l’Alimentation Nantes-Atlantique, Oniris, 44307 Nantes, France
| | - Sara Moutailler
- ANSES, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, 94700 Maisons-Alfort, France
| | - Sarah I. Bonnet
- UMR 2000 Institut Pasteur-CNRS-Université Paris-Cité, Ecology and Emergence of Arthropod-borne Pathogens, 75015 Paris, France
- Animal Health Department, INRAE, 37380 Nouzilly, France
| | - Nadia Haddad
- ANSES, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, 94700 Maisons-Alfort, France
| | - Nathalie Boulanger
- UR7290: VBP: Borrelia Group, France and French Reference Centre on Lyme Borreliosis, CHRU, Unversity of Strasbourg, 67000 Strasbourg, France
| | - Stephen L. Leib
- Institute for Infectious Diseases, University of Bern, 3001 Bern, Switzerland
| | | | - Etienne Thiry
- Fundamental and Applied Research for Animal and Health (FARAH) Center, University of Liege, 4000 Liege, Belgium
| | - Laure Bournez
- ANSES, Nancy Laboratory for Rabies and Wildlife, 54220 Malzéville, France
| | - Jana Kerlik
- Department of Epidemiology, Regional Authority of Public Health in Banská Bystrica, 497556 Banská Bystrica, Slovakia
| | - Aurélie Velay
- Unité Mixte de Recherché Immunorhumathologie Moléculaire (UMR IRM_S) 1109, Université de Strasbourg, INSERM, 67000 Strasbourg, France
| | - Solveig Jore
- Zoonotic, Water and Foodborne Infections, The Norwegian Institute for Public Health (NIPH), 0213 Oslo, Norway
| | - Elsa Jourdain
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, Route de Theix, 63122 Saint-Genès-Champanelle, France
| | | | - Katharina Brugger
- Competence Center Climate and Health, Austrian National Institute of Public Health, 1010 Vienna, Austria
| | - Julia Geller
- Department of Virology and Immunology, National Institute for Health Development, 11619 Tallinn, Estonia
| | - Marie Studahl
- Institute of Biomedicine, Department of Infectious Diseases, University of Gothenburg, 41685 Gothenburg, Sweden
| | - Nataša Knap
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Zaloška cesta 4, 1000 Ljubljana, Slovenia
| | - Tatjana Avšič-Županc
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Zaloška cesta 4, 1000 Ljubljana, Slovenia
| | - Daniel Růžek
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
- Department of Experimental Biology, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, 62100 Brno, Czech Republic
| | - Tizza P. Zomer
- Lyme Center Apeldoorn, Gelre Hospital, 7300 DS Apeldoorn, The Netherlands
| | - René Bødker
- Animal Welfare and Disease Control, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg, Denmark
| | - Thomas F. H. Berger
- Agroscope, Risk Evaluation and Risk Mitigation, Schwarzenburgstrasse, 3003 Bern-Liebefeld, Switzerland
| | - Sandra Martin-Latil
- Laboratory for Food Safety, ANSES, University of Paris-EST, 94700 Maisons-Alfort, France
| | - Nick De Regge
- Operational Direction Infectious Diseases in Animals, Unit of Exotic and Vector-borne Diseases, Sciensano, 1180 Brussels, Belgium
| | - Alice Raffetin
- Reference Centre for Tick-Borne Diseases, Paris and Northern Region, Department of Infectious Diseases, General Hospital of Villeneuve-Saint-Georges, 94100 Villeneuve-Saint-Georges, France
| | - Sandrine A. Lacour
- ANSES, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR VIROLOGIE, Laboratoire de Santé Animale, 94700 Maisons-Alfort, France
| | - Matthias Klein
- Neurologische Klinik und Poliklinik, Klinikum der Universität München, LMU München, Marchioninistraße 15, 81377 München, Germany
| | - Tinne Lernout
- Scientific Directorate of Epidemiology and Public Health, Sciensano, 1180 Brussels, Belgium
| | - Elsa Quillery
- ANSES, Risk Assessment Department, 94700 Maisons-Alfort, France
| | - Zdeněk Hubálek
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 60365 Brno, Czech Republic
| | - Francisco Ruiz-Fons
- Health & Biotechnology (SaBio) Group, Instituto de Investigación en Recursos Cinegéticos (IREC), CSIC-UCLM-JCCM, 13071 Ciudad Real, Spain
| | - Agustín Estrada-Peña
- Deptartment of Animal Health, Faculty of Veterinary Medicine, 50013 Zaragoza, Spain
| | - Philippe Fravalo
- Pôle Agroalimentaire, Conservatoire National des Arts et Métiers (Cnam), 75003 Paris, France
| | - Pauline Kooh
- ANSES, Risk Assessment Department, 94700 Maisons-Alfort, France
| | - Florence Etore
- ANSES, Risk Assessment Department, 94700 Maisons-Alfort, France
| | - Céline M. Gossner
- European Centre for Disease Prevention and Control (ECDC), 17183 Solna, Sweden
| | - Bethan Purse
- UK Centre for Ecology & Hydrology, Benson Lane, Crowmarsh Gifford, Oxfordshire OX10 8BB, UK
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Lang D, Chitimia-Dobler L, Bestehorn-Willmann M, Lindau A, Drehmann M, Stroppel G, Hengge H, Mackenstedt U, Kaier K, Dobler G, Borde J. The Emergence and Dynamics of Tick-Borne Encephalitis Virus in a New Endemic Region in Southern Germany. Microorganisms 2022; 10:2125. [PMID: 36363717 PMCID: PMC9693875 DOI: 10.3390/microorganisms10112125] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/12/2022] [Accepted: 10/17/2022] [Indexed: 06/11/2024] Open
Abstract
Tick-borne encephalitis (TBE) is the most important viral tick-borne infection in Europe and Asia. It is emerging in new areas. The mechanisms of emergence are fairly unknown or speculative. In the Ravensburg district in southern Germany, TBE emerged, mainly over the last five years. Here, we analyzed the underlying epidemiology in humans. The resulting identified natural foci of the causal TBE virus (TBEV) were genetically characterized. We sampled 13 potential infection sites at these foci and detected TBEV in ticks (Ixodes ricinus) at eight sites. Phylogenetic analysis spurred the introduction of at least four distinct TBEV lineages of the European subtype into the Ravensburg district over the last few years. In two instances, a continuous spread of these virus strains over up to 10 km was observed.
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Affiliation(s)
- Daniel Lang
- National Reference Laboratory for TBEV, Bundeswehr Institute for Microbiology, 80937 Munich, Germany
| | - Lidia Chitimia-Dobler
- National Reference Laboratory for TBEV, Bundeswehr Institute for Microbiology, 80937 Munich, Germany
| | - Malena Bestehorn-Willmann
- National Reference Laboratory for TBEV, Bundeswehr Institute for Microbiology, 80937 Munich, Germany
| | - Alexander Lindau
- Department of Parasitology, University of Hohenheim, 70599 Stuttgart, Germany
| | - Marco Drehmann
- Department of Parasitology, University of Hohenheim, 70599 Stuttgart, Germany
| | - Gabriele Stroppel
- Public Health Office, District Ravensburg, 88212 Ravensburg, Germany
| | - Helga Hengge
- Public Health Office, District Ravensburg, 88212 Ravensburg, Germany
| | - Ute Mackenstedt
- Department of Parasitology, University of Hohenheim, 70599 Stuttgart, Germany
| | - Klaus Kaier
- Institute of Medical Biometry and Statistics (IMBI), University Medical Center Freiburg im Breisgau, 79106 Freiburg im Breisgau, Germany
| | - Gerhard Dobler
- National Reference Laboratory for TBEV, Bundeswehr Institute for Microbiology, 80937 Munich, Germany
- Department of Parasitology, University of Hohenheim, 70599 Stuttgart, Germany
| | - Johannes Borde
- Praxis Prof. Borde & Kollegen, Gesundheitszentrum Oberkirch, 77704 Oberkirch, Germany
- Division of Infectious Diseases, Department of Internal Medicine, University Medical Center Freiburg im Breisgau, 79106 Freiburg im Breisgau, Germany
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Voyiatzaki C, Papailia SI, Venetikou MS, Pouris J, Tsoumani ME, Papageorgiou EG. Climate Changes Exacerbate the Spread of Ixodes ricinus and the Occurrence of Lyme Borreliosis and Tick-Borne Encephalitis in Europe-How Climate Models Are Used as a Risk Assessment Approach for Tick-Borne Diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116516. [PMID: 35682098 PMCID: PMC9180659 DOI: 10.3390/ijerph19116516] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 12/16/2022]
Abstract
Climate change has influenced the transmission of a wide range of vector-borne diseases in Europe, which is a pressing public health challenge for the coming decades. Numerous theories have been developed in order to explain how tick-borne diseases are associated with climate change. These theories include higher proliferation rates, extended transmission season, changes in ecological balances, and climate-related migration of vectors, reservoir hosts, or human populations. Changes of the epidemiological pattern have potentially catastrophic consequences, resulting in increasing prevalence of tick-borne diseases. Thus, investigation of the relationship between climate change and tick-borne diseases is critical. In this regard, climate models that predict the ticks’ geographical distribution changes can be used as a predicting tool. The aim of this review is to provide the current evidence regarding the contribution of the climatic changes to Lyme borreliosis (LB) disease and tick-borne encephalitis (TBE) and to present how computational models will advance our understanding of the relationship between climate change and tick-borne diseases in Europe.
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Affiliation(s)
- Chrysa Voyiatzaki
- Laboratory of Molecular Microbiology & Immunology, Department of Biomedical Sciences, University of West Attica, 12243 Athens, Greece; (S.I.P.); (J.P.); (M.E.T.)
- Correspondence:
| | - Sevastiani I. Papailia
- Laboratory of Molecular Microbiology & Immunology, Department of Biomedical Sciences, University of West Attica, 12243 Athens, Greece; (S.I.P.); (J.P.); (M.E.T.)
| | - Maria S. Venetikou
- Laboratory of Anatomy-Pathological Anatomy & Physiology Nutrition, Department of Biomedical Sciences, School of Health and Care Sciences, University of West Attica, 12243 Athens, Greece;
| | - John Pouris
- Laboratory of Molecular Microbiology & Immunology, Department of Biomedical Sciences, University of West Attica, 12243 Athens, Greece; (S.I.P.); (J.P.); (M.E.T.)
| | - Maria E. Tsoumani
- Laboratory of Molecular Microbiology & Immunology, Department of Biomedical Sciences, University of West Attica, 12243 Athens, Greece; (S.I.P.); (J.P.); (M.E.T.)
| | - Effie G. Papageorgiou
- Laboratory of Reliability and Quality Control in Laboratory Hematology (HemQcR), Department of Biomedical Sciences, School of Health and Care Sciences, University of West Attica, 12243 Athens, Greece;
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8
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Krzysiak MK, Anusz K, Konieczny A, Rola J, Salat J, Strakova P, Olech W, Larska M. The European bison (Bison bonasus) as an indicatory species for the circulation of tick-borne encephalitis virus (TBEV) in natural foci in Poland. Ticks Tick Borne Dis 2021; 12:101799. [PMID: 34358779 DOI: 10.1016/j.ttbdis.2021.101799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 07/05/2021] [Accepted: 07/05/2021] [Indexed: 12/16/2022]
Abstract
Tick-borne encephalitis (TBE) is one of the most common zoonotic diseases in Europe transmitted by Ixodidae vectors. While small mammals such as bank voles and ticks constitute the main reservoirs for virus transmission, large sylvatic species act as a food source for ticks. Cervids such as roe deer and red deer are considered sentinel species for TBE in natural foci. In addition, an increase of the population size and density of large wild mammals in an area corresponds to an increase in the tick burden and may potentially increase the prevalence of TBE virus (TBEV) in ticks and tick hosts and further exposure risk in humans. Humans are considered accidental hosts. The prevalence of TBE relies on interactions between host, vector and environment. The present study examines the exposure of the largest European herbivore, the European bison (Bison bonasus) to TBEV infection. Assessed using the IMMUNOZYM FSME ELISA (PROGEN), the overall TBEV seroprevalence was 62.7% in the 335 European bison that were studied. ELISA results were confirmed by the gold-standard virus neutralization test (VNT) with 98.7% sensitivity and thus giving a true prevalence of 63.5%. TBEV seroprevalence was significantly correlated to the origin, age group, sex, population type (free living/captive) and sanitary status (healthy/selectively eliminated/found dead/killed in accident) of the European bison in the univariable analysis. The highest seroprevalences were observed in the three largest north-eastern wild populations (Białowieska, Borecka and Knyszyńska forests), which corresponded with the highest incidence of human cases reported in the country. The risk of TBEV seropositivity increased with age and was higher in female and free-ranging European bison. Additionally, to the epidemiological investigation, the continuous detection of TBEV antibodies was studied by repetitive testing of animals over the course of 34 months. Two of six seropositive animals remained seropositive throughout the study. The presence of antibodies was followed throughout the study in seropositive European bison and for at least a year in animals that seroconverted during the observation period.
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Affiliation(s)
- Michał K Krzysiak
- Białowieża National Park, Park Pałacowy 11, 17-230, Białowieża, Poland; Faculty of Civil Engineering and Environmental Sciences, Institute of Forest Sciences, Białystok University of Technology, Wiejska 45 E, 15-351, Białystok, Poland.
| | - Krzysztof Anusz
- Department of Food Hygiene and Public Health Protection, Institute of Veterinary Medicine, Warsaw University Of Life Sciences (WULS), ul. Nowoursynowska 166, Warszawa 02-786, Poland
| | - Andrzej Konieczny
- Faculty of Agrobioengineering, University of Live Sciences, ul. Akademicka 13, Lublin 20-950, Poland
| | - Jerzy Rola
- Department of Virology, National Veterinary Research Institute, AL. Partyzantów 57, Pulawy 24-100, Poland
| | - Jiri Salat
- Veterinary Research Institute, Hudcova 296/70, Brno 621 00, Czech Republic; Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branisovska 31, Ceské Budejovice 37005, Czech Republic
| | - Petra Strakova
- Veterinary Research Institute, Hudcova 296/70, Brno 621 00, Czech Republic; Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branisovska 31, Ceské Budejovice 37005, Czech Republic
| | - Wanda Olech
- Institute of Animal Sciences, Warsaw University of Life Science (WULS), ul. Ciszewskiego 8, Warszawa 02-786, Poland
| | - Magdalena Larska
- Department of Virology, National Veterinary Research Institute, AL. Partyzantów 57, Pulawy 24-100, Poland
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9
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Clinical Characteristics of Patients with Tick-Borne Encephalitis (TBE): A European Multicentre Study from 2010 to 2017. Microorganisms 2021; 9:microorganisms9071420. [PMID: 34209373 PMCID: PMC8306415 DOI: 10.3390/microorganisms9071420] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 12/25/2022] Open
Abstract
Tick-borne encephalitis (TBE) virus is a major cause of central nervous system infections in endemic countries. Here, we present clinical and laboratory characteristics of a large international cohort of patients with confirmed TBE using a uniform clinical protocol. Patients were recruited in eight centers from six European countries between 2010 and 2017. A detailed description of clinical signs and symptoms was recorded. The obtained information enabled a reliable classification in 553 of 555 patients: 207 (37.3%) had meningitis, 273 (49.2%) meningoencephalitis, 15 (2.7%) meningomyelitis, and 58 (10.5%) meningoencephalomyelitis; 41 (7.4%) patients had a peripheral paresis of extremities, 13 (2.3%) a central paresis of extremities, and 25 (4.5%) had single or multiple cranial nerve palsies. Five (0.9%) patients died during acute illness. Outcome at discharge was recorded in 298 patients. Of 176 (59.1%) patients with incomplete recovery, 80 (27%) displayed persisting symptoms or signs without recovery expectation. This study provides further evidence that TBE is a severe disease with a large proportion of patients with incomplete recovery. We suggest monitoring TBE in endemic European countries using a uniform protocol to record the full clinical spectrum of the disease.
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10
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Banović P, Obregón D, Mijatović D, Simin V, Stankov S, Budakov-Obradović Z, Bujandrić N, Grujić J, Sević S, Turkulov V, Díaz-Sánchez AA, Cabezas-Cruz A. Tick-Borne Encephalitis Virus Seropositivity among Tick Infested Individuals in Serbia. Pathogens 2021; 10:301. [PMID: 33807559 PMCID: PMC8001322 DOI: 10.3390/pathogens10030301] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/13/2021] [Accepted: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
Tick-borne encephalitis (TBE), caused by the TBE virus (TBEV), is a life-threatening disease with clinical symptoms ranging from non-specific to severe inflammation of the central nervous system. Despite TBE is a notifiable disease in Serbia since 2004, there is no active TBE surveillance program for the serologic or molecular screening of TBEV infection in humans in the country. This prospective cohort study aimed to assess the TBEV exposure among tick-infested individuals in Serbia during the year 2020. A total of 113 individuals exposed to tick bites were recruited for the study and screened for anti-TBEV antibodies using a commercial indirect fluorescent antibody test (IFA) test. Blood samples from 50 healthy donors not exposed to tick bites were included as a control group. Most of the enrolled patients reported infestations with one tick, being I. ricinus the most frequent tick found in the participants. The TBEV seroprevalence was higher (13.27%, 15 total 113) in tick-infested individuals than in healthy donors (4%, 2 total 50), although the difference was not significant. Notably, male individuals exposed to tick bites showed five times higher relative risk (RR) of being TBEV-seropositive than healthy donors of the same gender (RR= 5.1, CI = 1.6-19; p = 0.007). None of the seropositive individuals developed clinical manifestations of TBE, but the first clinical-stage of Lyme borreliosis (i.e., erythema migrans) was detected in seven of them. Potential TBEV foci were identified in rural areas, mostly in proximity or within the Fruška Gora mountain. We conclude that the Serbian population is at high risk of TBEV exposure. Further epidemiological studies should focus on potential TBEV foci identified in this study. The implementation of active surveillance for TBEV might contribute to evaluating the potential negative impact of TBE in Serbia.
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Affiliation(s)
- Pavle Banović
- Ambulance for Lyme Borreliosis and Other Tick-Borne Diseases, Pasteur Institute Novi Sad, 21000 Novi Sad, Serbia;
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (Z.B.-O.); (N.B.); (J.G.); (S.S.); (V.T.)
| | - Dasiel Obregón
- School of Environmental Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada;
- Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP 13400-970, Brazil
| | - Dragana Mijatović
- Ambulance for Lyme Borreliosis and Other Tick-Borne Diseases, Pasteur Institute Novi Sad, 21000 Novi Sad, Serbia;
| | - Verica Simin
- Department of Microbiology, Pasteur Institute Novi Sad, 21000 Novi Sad, Serbia; (V.S.); (S.S.)
| | - Srdjan Stankov
- Department of Microbiology, Pasteur Institute Novi Sad, 21000 Novi Sad, Serbia; (V.S.); (S.S.)
| | - Zorana Budakov-Obradović
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (Z.B.-O.); (N.B.); (J.G.); (S.S.); (V.T.)
- Blood Transfusion Institute Vojvodina, 21000 Novi Sad, Serbia
| | - Nevenka Bujandrić
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (Z.B.-O.); (N.B.); (J.G.); (S.S.); (V.T.)
- Blood Transfusion Institute Vojvodina, 21000 Novi Sad, Serbia
| | - Jasmina Grujić
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (Z.B.-O.); (N.B.); (J.G.); (S.S.); (V.T.)
- Blood Transfusion Institute Vojvodina, 21000 Novi Sad, Serbia
| | - Siniša Sević
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (Z.B.-O.); (N.B.); (J.G.); (S.S.); (V.T.)
- Clinic for Infectious Diseases, Clinical Center of Vojvodina, 21000 Novi Sad, Serbia
| | - Vesna Turkulov
- Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (Z.B.-O.); (N.B.); (J.G.); (S.S.); (V.T.)
- Clinic for Infectious Diseases, Clinical Center of Vojvodina, 21000 Novi Sad, Serbia
| | | | - Alejandro Cabezas-Cruz
- Anses, INRAE, Ecole Nationale Vétérinaire d’Alfort, UMR BIPAR, Laboratoire de Santé Animale, F-94700 Maisons-Alfort, France
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11
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Abstract
Ticks exist on all continents and carry more zoonotic pathogens than any other type of vector. Ticks spend most of their lives in the external environment away from the host and are thus expected to be affected by changes in climate. Most empirical and theoretical studies demonstrate or predict range shifts or increases in ticks and tick-borne diseases, but there can be a lot of heterogeneity in such predictions. Tick-borne disease systems are complex, and determining whether changes are due to climate change or other drivers can be difficult. Modeling studies can help tease apart and understand the roles of different drivers of change. Predictive models can also be invaluable in projecting changes according to different climate change scenarios. However, validating these models remains challenging, and estimating uncertainty in predictions is essential. Another focus for future research should be assessing the resilience of ticks and tick-borne pathogens to climate change.
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Affiliation(s)
- Lucy Gilbert
- Institute for Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow G12 8QQ, United Kingdom;
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12
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Quadros DG, Johnson TL, Whitney TR, Oliver JD, Oliva Chávez AS. Plant-Derived Natural Compounds for Tick Pest Control in Livestock and Wildlife: Pragmatism or Utopia? INSECTS 2020; 11:insects11080490. [PMID: 32752256 PMCID: PMC7469192 DOI: 10.3390/insects11080490] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/22/2020] [Accepted: 07/29/2020] [Indexed: 12/17/2022]
Abstract
Ticks and tick-borne diseases are a significant economic hindrance for livestock production and a menace to public health. The expansion of tick populations into new areas, the occurrence of acaricide resistance to synthetic chemical treatments, the potentially toxic contamination of food supplies, and the difficulty of applying chemical control in wild-animal populations have created greater interest in developing new tick control alternatives. Plant compounds represent a promising avenue for the discovery of such alternatives. Several plant extracts and secondary metabolites have repellent and acaricidal effects. However, very little is known about their mode of action, and their commercialization is faced with multiple hurdles, from the determination of an adequate formulation to field validation and public availability. Further, the applicability of these compounds to control ticks in wild-animal populations is restrained by inadequate delivery systems that cannot guarantee accurate dosage delivery at the right time to the target animal populations. More work, financial support, and collaboration with regulatory authorities, research groups, and private companies are needed to overcome these obstacles. Here, we review the advancements on known plant-derived natural compounds with acaricidal potential and discuss the road ahead toward the implementation of organic control in managing ticks and tick-borne diseases.
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Affiliation(s)
- Danilo G. Quadros
- Texas A&M AgriLife Research, San Angelo, TX 76901, USA; (D.G.Q.); (T.R.W.)
| | - Tammi L. Johnson
- Department of Rangelands, Wildlife and Fisheries Management, Texas A&M AgriLife Research, Texas A&M University, Uvalde, TX 78801, USA;
| | - Travis R. Whitney
- Texas A&M AgriLife Research, San Angelo, TX 76901, USA; (D.G.Q.); (T.R.W.)
| | - Jonathan D. Oliver
- Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA;
| | - Adela S. Oliva Chávez
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
- Correspondence: ; Tel.: +1-979-845-1946
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