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Burguete-Mikeo A, Fernández-Rubio C, Peña-Guerrero J, El-Dirany R, Gainza L, Carasa Buj B, Nguewa PA. Characterization of Leishmania Parasites Isolated from Naturally Infected Mammals. Animals (Basel) 2023; 13:2153. [PMID: 37443951 DOI: 10.3390/ani13132153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Leishmaniasis is spreading in Europe, especially in endemic countries such as Italy and Spain, in part due to ongoing climate change and the increase in travel and migration. Although Leishmania infantum is the main agent responsible for this disease in humans and animals, other species and hybrids have been detected. This highlights the need to continue isolating and characterizing Leishmania strains from biological samples of infected hosts. In this study, we characterized the recently isolated parasites L. infantum NAV and L. infantum TDL, obtained from naturally infected mammals (dogs), and we compared them with the widely distributed and studied strain L. infantum BCN 150. Both NAV and TDL promastigotes showed a slower growth rate than BCN 150 and were significantly more sensitive to amphotericin B and miltefosine. Furthermore, the expression of the CYCA gene (involved in cell cycle and proliferation) was significantly downregulated in NAV and TDL isolates. On the other hand, CYC6 (implicated in treatment resistance) and APG9 (related to the recycling of protein under stress conditions and/or while undergoing a differentiation process and treatment resistance) levels were upregulated, compared to those measured in BCN 150. Both isolates displayed a higher infection capacity (>3 amastigotes per macrophage and >70% of infected macrophages) compared to controls (<2 amastigotes/cells and <50% of infected macrophages). Finally, a higher susceptibility to miltefosine treatment was observed in intracellular NAV and TDL amastigotes. In conclusion, TDL and NAV are novel Leishmania isolates that might be useful for in vitro and in vivo assays that will allow a better understanding of the parasite biology in Mediterranean areas.
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Affiliation(s)
- Aroia Burguete-Mikeo
- ISTUN Instituto de Salud Tropical, Department of Microbiology and Parasitology, University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
- IdiSNA (Navarra Institute for Health Research), University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
| | - Celia Fernández-Rubio
- ISTUN Instituto de Salud Tropical, Department of Microbiology and Parasitology, University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
- IdiSNA (Navarra Institute for Health Research), University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
| | - José Peña-Guerrero
- ISTUN Instituto de Salud Tropical, Department of Microbiology and Parasitology, University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
- IdiSNA (Navarra Institute for Health Research), University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
| | - Rima El-Dirany
- ISTUN Instituto de Salud Tropical, Department of Microbiology and Parasitology, University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
- IdiSNA (Navarra Institute for Health Research), University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
- Laboratory of Molecular Biology and Cancer Immunology, Faculty of Sciences I, Lebanese University, Hadath 1003, Lebanon
| | - Leonardo Gainza
- Clinica Veterinaria Burlada, Plaza Ezcabazabal 2, E-31600 Burlada, Spain
| | - Belen Carasa Buj
- Clinica Veterinaria Belen Carasa Buj, c/Ximénez de Rada 53, E-31500 Tudela, Spain
| | - Paul A Nguewa
- ISTUN Instituto de Salud Tropical, Department of Microbiology and Parasitology, University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
- IdiSNA (Navarra Institute for Health Research), University of Navarra, c/Irunlarrea 1, E-31008 Pamplona, Spain
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Systematic Review and Meta-Analysis of Integrated Studies on Salmonella and Campylobacter Prevalence, Serovar, and Phenotyping and Genetic of Antimicrobial Resistance in the Middle East—A One Health Perspective. Antibiotics (Basel) 2022; 11:antibiotics11050536. [PMID: 35625181 PMCID: PMC9137557 DOI: 10.3390/antibiotics11050536] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/15/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023] Open
Abstract
Background:Campylobacter and Salmonella are the leading causes of foodborne diseases worldwide. Recently, antimicrobial resistance (AMR) has become one of the most critical challenges for public health and food safety. To investigate and detect infections commonly transmitted from animals, food, and the environment to humans, a surveillance–response system integrating human and animal health, the environment, and food production components (iSRS), called a One Health approach, would be optimal. Objective: We aimed to identify existing integrated One Health studies on foodborne illnesses in the Middle East and to determine the prevalence, serovars, and antimicrobial resistance phenotypes and genotypes of Salmonella and Campylobacter strains among humans and food-producing animals. Methods: The databases Web of Science, Scopus, and PubMed were searched for literature published from January 2010 until September 2021. Studies meeting inclusion criteria were included and assessed for risk of bias. To assess the temporal and spatial relationship between resistant strains from humans and animals, a statistical random-effects model meta-analysis was performed. Results: 41 out of 1610 studies that investigated Campylobacter and non-typhoid Salmonella (NTS) in the Middle East were included. The NTS prevalence rates among human and food-producing animals were 9% and 13%, respectively. The Campylobacter prevalence rates were 22% in humans and 30% in food-producing animals. The most-reported NTS serovars were Salmonella Enteritidis and Salmonella Typhimurium, while Campylobacter jejuni and Campylobacter coli were the most prevalent species of Campylobacter. NTS isolates were highly resistant to erythromycin, amoxicillin, tetracycline, and ampicillin. C. jejuni isolates showed high resistance against amoxicillin, trimethoprim–sulfamethoxazole, nalidixic acid, azithromycin, chloramphenicol, ampicillin, tetracycline, and ciprofloxacin. The most prevalent Antimicrobial Resistance Genes (ARGs) in isolates from humans included tetO (85%), Class 1 Integrons (81%), blaOXA-61 (53%), and cmeB (51%), whereas in food-producing animals, the genes were tetO (77%), Class 1 integrons (69%), blaOXA-61 (35%), and cmeB (35%). The One Health approach was not rigorously applied in the Middle East countries. Furthermore, there was an uneven distribution in the reported data between the countries. Conclusion: More studies using a simultaneous approach targeting human, animal health, the environment, and food production components along with a solid epidemiological study design are needed to better understand the drivers for the emergence and spread of foodborne pathogens and AMR in the Middle East.
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Harrison S, Kivuti-Bitok L, Macmillan A, Priest P. EcoHealth and One Health: A theory-focused review in response to calls for convergence. ENVIRONMENT INTERNATIONAL 2019; 132:105058. [PMID: 31473414 DOI: 10.1016/j.envint.2019.105058] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/11/2019] [Accepted: 07/23/2019] [Indexed: 05/02/2023]
Abstract
BACKGROUND EcoHealth and One Health are two major approaches broadly aimed at understanding the links between human, animal, and environment health. There have been increasing calls for convergence between the two. If convergence is desired, greater clarity regarding the underlying theoretical assumptions of both approaches is required. This would also support integrated research to effectively address complex health issues at the human, animal and environment interface. To better understand the areas of overlap and alignment, we systematically compared and contrasted the theoretical assumptions of both approaches. OBJECTIVES We aimed to gain a more in-depth understanding of the ontological, epistemological and methodological underpinnings of EcoHealth and One Health in order to identify areas of difference and overlap, and consider the extent to which closer convergence between the two may be possible. METHODS We undertook a scoping review of literature about the ontological, epistemological and methodological positions of EcoHealth and One Health, and analyzed these according to Lincoln, Lynham and Guba's paradigm framework. RESULTS EcoHealth and One Health are both collaborative, systems-focused approaches at the human, animal, and ecosystem health interface. EcoHealth typically leans towards constructivist-leaning assumptions. Many consider this a necessary aspiration for One Health. However, in practice One Health remains dominated by the veterinary and medical disciplines that emphasize positivist-leaning assumptions. DISCUSSION The aspirations of EcoHealth and One Health appear to overlap at the conceptual level, and may well warrant closer convergence. However, further shared discussions about their epistemological and ontological assumptions are needed to reconcile important theoretical differences, and to better guide scopes of practice. Critical realism may be a crucial theoretical meeting point. Systems thinking methods (with critical realist underpinnings), such as system dynamics modelling, are potentially useful methodologies for supporting convergent practice.
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Affiliation(s)
- Sarah Harrison
- Department of Preventive and Social Medicine, University of Otago, Dunedin, Otago, New Zealand.
| | - Lucy Kivuti-Bitok
- Department of Preventive and Social Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - Alexandra Macmillan
- Department of Preventive and Social Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - Patricia Priest
- Department of Preventive and Social Medicine, University of Otago, Dunedin, Otago, New Zealand
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Zhuo A, Labbate M, Norris JM, Gilbert GL, Ward MP, Bajorek BV, Degeling C, Rowbotham SJ, Dawson A, Nguyen KA, Hill-Cawthorne GA, Sorrell TC, Govendir M, Kesson AM, Iredell JR, Dominey-Howes D. Opportunities and challenges to improving antibiotic prescribing practices through a One Health approach: results of a comparative survey of doctors, dentists and veterinarians in Australia. BMJ Open 2018; 8:e020439. [PMID: 29602857 PMCID: PMC5884343 DOI: 10.1136/bmjopen-2017-020439] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVES To explore and compare the knowledge, attitudes and experiences of doctors, dentists and veterinarians (as prescribers) in relation to antibiotic use and antibiotic resistance (AbR), and to consider the implications of these for policy-making that support a One Health approach. DESIGN A cross-sectional survey conducted online. SETTING Doctors, dentists and veterinarians practising in primary, secondary or tertiary care in Australia. PARTICIPANTS 547 doctors, 380 dentists and 403 veterinarians completed the survey. MAIN OUTCOME MEASURES Prescribers' knowledge, attitudes and perceptions of AbR, the extent to which a range of factors are perceived as barriers to appropriate prescribing practices, and perceived helpfulness of potential strategies to improve antibiotic prescribing in practice. RESULTS There was substantial agreement across prescriber groups that action on AbR is required by multiple sectors and stakeholders. However, prescribers externalised responsibility to some extent by seeing the roles of others as more important than their own in relation to AbR. There were common and context-specific barriers to optimal prescribing across the prescriber groups. Prescriber groups generally perceived restrictive policies as unhelpful to supporting appropriate prescribing in their practice. CONCLUSIONS The results have implications for implementing a One Health approach that involves doctors, dentists and veterinarians as key players to tackling the crisis of AbR. The findings are that (1) prescribers understand and are likely receptive to a One Health policy approach to AbR, (2) policy development should be sensitive to barriers that are specific to individual prescriber groups and (3) the development and introduction of interventions that might be perceived as reducing prescriber autonomy will need to be carefully designed and implemented.
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Affiliation(s)
- Annie Zhuo
- School of Geosciences, The University of Sydney, Sydney, NSW, Australia
| | - Maurizio Labbate
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
- The ithree Institute, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Jacqueline M Norris
- Sydney School of Veterinary Science, University of Sydney, Sydney, New South Wales, Australia
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
| | - Gwendolyn L Gilbert
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
| | - Michael P Ward
- Sydney School of Veterinary Science, University of Sydney, Sydney, New South Wales, Australia
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
| | - Beata V Bajorek
- Graduate School of Health, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Chris Degeling
- Faculty of Social Science, University of Wollongong, Wollongong, NSW, Australia
| | - Samantha J Rowbotham
- Menzies Centre for Health Policy, Sydney School of Public Health, University of Sydney, Sydney, New South Wales, Australia
- The Australian Prevention Partnership Centre, The Sax Institute, Sydney, New South Wales, Australia
| | - Angus Dawson
- Sydney Health Ethics, University of Sydney, Sydney, New South Wales, Australia
| | - Ky-Anh Nguyen
- Faculty of Dentistry, University of Sydney, Sydney, New South Wales, Australia
- Institute of Dental Research, Westmead Centre for Oral Health, Sydney, New South Wales, Australia
| | - Grant A Hill-Cawthorne
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
- Sydney School of Public Health, University of Sydney, Sydney, New South Wales, Australia
| | - Tania C Sorrell
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
- Westmead Institute for Medical Research, Sydney, New South Wales, Australia
| | - Merran Govendir
- Sydney School of Veterinary Science, University of Sydney, Sydney, New South Wales, Australia
| | - Alison M Kesson
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
- Discipline of Child and Adolescent Health, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Infectious Disease and Microbiology, The Children’s Hospital at Westmead, Sydney, NSW, Australia
| | - Jonathan R Iredell
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
- Westmead Institute for Medical Research, Sydney, New South Wales, Australia
- Westmead Hospital, Sydney, New South Wales, Australia
| | - Dale Dominey-Howes
- School of Geosciences, The University of Sydney, Sydney, NSW, Australia
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, New South Wales, Australia
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Kniel KE, Kumar D, Thakur S. Understanding the Complexities of Food Safety Using a "One Health" Approach. Microbiol Spectr 2018; 6:10.1128/microbiolspec.pfs-0021-2017. [PMID: 29451115 PMCID: PMC11633553 DOI: 10.1128/microbiolspec.pfs-0021-2017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Indexed: 12/21/2022] Open
Abstract
The philosophy of One Health is growing in concept and clarity. The interdependence of human, animal, and environmental health is the basis for the concept of One Health. One Health is a comprehensive approach to ensure the health of people, animals, and the environment through collaborative efforts. Preharvest food safety issues align with the grand concept of One Health. Imagine any food production system, and immediately, parallel images from One Health emerge: for example, transmission of zoonotic diseases, antibiotic residues, or resistance genes in the environment; environmental and animal host reservoirs of disease; challenges with rearing animals and growing fresh produce on the same farm; application and transport of manure or diseased animals. During a recent celebration of #OneHealthDay, information was shared around the globe concerning scientists dedicated to One Health research systems. An ever-growing trade and global commerce system mixed with our incessant desire for food products during the whole year makes it all the more important to take a global view through the One Health lens to solve these growing challenges. The recent explosion of Zika virus around the globe renewed the need for assessing transmissible diseases through the eyes of One Health. It is not good enough to know how a disease affects the human population without a thorough understanding of the environment and vector reservoirs. If 60 to 75% of infectious diseases affecting humans are of animal origin, the need for better One Health research strategies and overdue solutions is imperative.
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Affiliation(s)
- Kalmia E Kniel
- Department of Animal and Food Science, University of Delaware, Newark, DE 19716
| | - Deepak Kumar
- Department of Veterinary Public Health & Epidemiology, College of Veterinary and Animal Sciences, Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, Uttarakhand-263145, India
| | - Siddhartha Thakur
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607
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Kothary MH, Gopinath GR, Gangiredla J, Rallabhandi PV, Harrison LM, Yan QQ, Chase HR, Lee B, Park E, Yoo Y, Chung T, Finkelstein SB, Negrete FJ, Patel IR, Carter L, Sathyamoorthy V, Fanning S, Tall BD. Analysis and Characterization of Proteins Associated with Outer Membrane Vesicles Secreted by Cronobacter spp. Front Microbiol 2017; 8:134. [PMID: 28232819 PMCID: PMC5299011 DOI: 10.3389/fmicb.2017.00134] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 01/19/2017] [Indexed: 02/02/2023] Open
Abstract
Little is known about secretion of outer membrane vesicles (OMVs) by Cronobacter. In this study, OMVs isolated from Cronobacter sakazakii, Cronobacter turicensis, and Cronobacter malonaticus were examined by electron microscopy (EM) and their associated outer membrane proteins (OMP) and genes were analyzed by SDS-PAGE, protein sequencing, BLAST, PCR, and DNA microarray. EM of stained cells revealed that the OMVs are secreted as pleomorphic micro-vesicles which cascade from the cell's surface. SDS-PAGE analysis identified protein bands with molecular weights of 18 kDa to >100 kDa which had homologies to OMPs such as GroEL; OmpA, C, E, F, and X; MipA proteins; conjugative plasmid transfer protein; and an outer membrane auto-transporter protein (OMATP). PCR analyses showed that most of the OMP genes were present in all seven Cronobacter species while a few genes (OMATP gene, groEL, ompC, mipA, ctp, and ompX) were absent in some phylogenetically-related species. Microarray analysis demonstrated sequence divergence among the OMP genes that was not captured by PCR. These results support previous findings that OmpA and OmpX may be involved in virulence of Cronobacter, and are packaged within secreted OMVs. These results also suggest that other OMV-packaged OMPs may be involved in roles such as stress response, cell wall and plasmid maintenance, and extracellular transport.
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Affiliation(s)
| | | | | | | | | | - Qiong Q Yan
- Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, WHO Collaborating Centre for Cronobacter, University College, Dublin Dublin, Ireland
| | | | - Boram Lee
- U. S. Food and Drug Administration Laurel, MD, USA
| | - Eunbi Park
- U. S. Food and Drug Administration Laurel, MD, USA
| | - YeonJoo Yoo
- U. S. Food and Drug Administration Laurel, MD, USA
| | | | | | | | - Isha R Patel
- U. S. Food and Drug Administration Laurel, MD, USA
| | | | | | - Séamus Fanning
- Centre for Food Safety, School of Public Health, Physiotherapy and Sports Science, WHO Collaborating Centre for Cronobacter, University College, Dublin Dublin, Ireland
| | - Ben D Tall
- U. S. Food and Drug Administration Laurel, MD, USA
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Rodrigues VFV, Rivera ING, Lim KY, Jiang SC. Detection and risk assessment of diarrheagenic E. coli in recreational beaches of Brazil. MARINE POLLUTION BULLETIN 2016; 109:163-170. [PMID: 27301685 DOI: 10.1016/j.marpolbul.2016.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/25/2016] [Accepted: 06/02/2016] [Indexed: 05/13/2023]
Abstract
Marine beaches are important recreational and economic resources in Brazil, but the beaches' water quality is negatively impacted by the discharge of domestic sewage effluent. The occurrence of diarrheagenic Escherichiacoli among the E. coli isolated from three Brazilian marine beaches was investigated. Multiplex and single step PCR were used to screen 99 E. coli isolates for ten target toxin genes. Six toxin genes, stx1, eae, estp, esth, astA, and bfpA, were identified in 1% to 35% of the isolates. A quantitative microbial risk assessment (QMRA) of human exposure to diarrheagenic E. coli during marine recreation was carried out. The results indicated that the diarrheagenic E. coli risk is well below the U.S. EPA's recommended daily recreational risk benchmark. However, the overall recreational health risk due to all pathogens in the water could be much higher and exceeded the U.S. EPA's benchmark.
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Affiliation(s)
- Vanessa F V Rodrigues
- Biomedical Science Institute, Microbiology Department, University of São Paulo, Estado de São Paulo, SP 05508-000, Brazil; Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Irma N G Rivera
- Biomedical Science Institute, Microbiology Department, University of São Paulo, Estado de São Paulo, SP 05508-000, Brazil
| | - Keah-Ying Lim
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Sunny C Jiang
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA.
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Climate Change and Children's Health: A Commentary. CHILDREN-BASEL 2015; 2:412-23. [PMID: 27417373 PMCID: PMC4928774 DOI: 10.3390/children2040412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 09/10/2014] [Accepted: 09/11/2015] [Indexed: 11/29/2022]
Abstract
This commentary describes the likely impacts on children's health and wellbeing from climate change, based on the solid science of environmental child health. It describes likely climate change scenarios, why children are more vulnerable than older people to these changes, and what to expect in terms of diseases (e.g., infections, asthma) and problems (e.g., malnutrition, mental illness). The common antecedents of climate change and other detrimental changes to our society mean that in combatting them (such as excessive consumption and greed), we may not only reduce the harmful effects of climate change but also work towards a better society overall—one that values its children and their futures.
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