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Ye C, Zhang L, Tang L, Duan Y, Liu J, Zhou H. Host genetic backgrounds: the key to determining parasite-host adaptation. Front Cell Infect Microbiol 2023; 13:1228206. [PMID: 37637465 PMCID: PMC10449477 DOI: 10.3389/fcimb.2023.1228206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/20/2023] [Indexed: 08/29/2023] Open
Abstract
Parasitic diseases pose a significant threat to global public health, particularly in developing countries. Host genetic factors play a crucial role in determining susceptibility and resistance to infection. Recent advances in molecular and biological technologies have enabled significant breakthroughs in understanding the impact of host genes on parasite adaptation. In this comprehensive review, we analyze the host genetic factors that influence parasite adaptation, including hormones, nitric oxide, immune cells, cytokine gene polymorphisms, parasite-specific receptors, and metabolites. We also establish an interactive network to better illustrate the complex relationship between host genetic factors and parasite-host adaptation. Additionally, we discuss future directions and collaborative research priorities in the parasite-host adaptation field, including investigating the impact of host genes on the microbiome, developing more sophisticated models, identifying and characterizing parasite-specific receptors, utilizing patient-derived sera as diagnostic and therapeutic tools, and developing novel treatments and management strategies targeting specific host genetic factors. This review highlights the need for a comprehensive and systematic approach to investigating the underlying mechanisms of parasite-host adaptation, which requires interdisciplinary collaborations among biologists, geneticists, immunologists, and clinicians. By deepening our understanding of the complex interactions between host genetics and parasite adaptation, we can develop more effective and targeted interventions to prevent and treat parasitic diseases. Overall, this review provides a valuable resource for researchers and clinicians working in the parasitology field and offers insights into the future directions of this critical research area.
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Affiliation(s)
- Caixia Ye
- Clinical Medical Research Center, The Second Affiliated Hospital, Army Medical University, Chongqing, China
- Department of Pediatrics, Yunyang Women and Children’s Hospital (Yunyang Maternal and Child Health Hospital), Chongqing, China
| | - Lianhua Zhang
- Clinical Medical Research Center, The Second Affiliated Hospital, Army Medical University, Chongqing, China
- Department of Surgery, Yunyang Women and Children’s Hospital (Yunyang Maternal and Child Health Hospital), Chongqing, China
| | - Lili Tang
- The 3rd Affiliated Teaching Hospital of Xinjiang Medical University (Affiliated Tumor Hospital), Urumqi, China
| | - Yongjun Duan
- Department of Pediatrics, Yunyang Women and Children’s Hospital (Yunyang Maternal and Child Health Hospital), Chongqing, China
| | - Ji Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hongli Zhou
- Clinical Medical Research Center, The Second Affiliated Hospital, Army Medical University, Chongqing, China
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Cowie RH, Malik R, Morgan ER. Comparative biology of parasitic nematodes in the genus Angiostrongylus and related genera. ADVANCES IN PARASITOLOGY 2023; 121:65-197. [PMID: 37474239 DOI: 10.1016/bs.apar.2023.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
The rise to prominence of some Angiostrongylus species through associated emerging disease in humans and dogs has stimulated calls for a renewed focus on the biology of this genus and three related genera. Although significant research efforts have been made in recent years these have tended to focus on individual species and specific aspects such as diagnosis and treatment of disease or new records of occurrence and hosts. This comprehensive review takes a comparative approach, seeking commonalities and differences among species and asking such questions as: Which species belong to this and to closely related genera and how are they related? Why do only some species appear to be spreading geographically and what factors might underlie range expansion? Which animal species are involved in the life cycles as definitive, intermediate, paratenic and accidental hosts? How do parasite larvae find, infect and develop within these hosts? What are the consequences of infection for host health? How will climate change affect future spread and global health? Appreciating how species resemble and differ from each other shines a spotlight on knowledge gaps and provides provisional guidance on key species characteristics warranting detailed study. Similarities exist among species, including the basic life cycle and transmission processes, but important details such as host range, climatic requirements, migration patterns within hosts and disease mechanisms differ, with much more information available for A. cantonensis and A. vasorum than for other species. Nonetheless, comparison across Angiostrongylus reveals some common patterns. Historically narrow definitive host ranges are expanding with new knowledge, combining with very broad ranges of intermediate gastropod hosts and vertebrate and invertebrate paratenic and accidental hosts to provide the backdrop to complex interactions among climate, ecology and transmission that remain only partly understood, even for the species of dominant concern. Key outstanding questions concern larval dynamics and the potential for transmission outside trophic relations, relations between infection and disease severity in different hosts, and how global change is altering transmission beyond immediate impacts on development rate in gastropods. The concept of encounter and compatibility filters could help to explain differences in the relative importance of different gastropod species as intermediate hosts and determine the importance of host community composition and related environmental factors to transmission and range. Across the group, it remains unclear what, physiologically, immunologically or taxonomically, delimits definitive, accidental and paratenic hosts. Impacts of infection on definitive host fitness and consequences for population dynamics and transmission remain mostly unexplored across the genus. Continual updating and cross-referencing across species of Angiostrongylus and related genera is important to synthesise rapid advances in understanding of key traits and behaviours, especially in important Angiostrongylus species that are emerging causative agents of disease in humans and other animals.
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Affiliation(s)
- Robert H Cowie
- Pacific Biosciences Research Center, University of Hawaii, Maile Way, Gilmore, Honolulu, HI, United States.
| | - Richard Malik
- Centre for Veterinary Education, The University of Sydney, NSW, Australia
| | - Eric R Morgan
- Institute for Global Food Security, Queen's University Belfast, Chlorine Gardens, Belfast, United Kingdom; School of Veterinary Science, University of Bristol, Langford House, Langford, North Somerset, United Kingdom
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Fecková B, Djoehana P, Putnová B, Valašťanová M, Petríková M, Knotek Z, Modrý D. Pathology of Angiostrongylus cantonensis infection in two model avian hosts. Parasitology 2021; 148:174-177. [PMID: 32981549 PMCID: PMC11010151 DOI: 10.1017/s0031182020001869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/14/2020] [Accepted: 09/22/2020] [Indexed: 11/08/2022]
Abstract
Angiostrongylus cantonensis causes severe neurological disorders in a wide range of warm-blooded animals, including several avian species. A laboratory isolate of A. cantonensis originating from French Polynesia, genotyped as clade 2, was used to assess the effect of experimental infection in chicken and Japanese quail. Low dose groups of birds were infected orally by 100 L3 larvae, high dose groups by 1500 L3 larvae and the birds in the third group were fed three infected snails, mimicking a natural infection. Clinical signs during the first week after infection, haematology, biochemistry, gross lesions and histology findings were used to assess the pathology of the infection. Some of the infected birds showed peripheral eosinophilia, while mild neurological signs were seen in others. No larvae were observed in serial sections of the central nervous system of infected birds 1 week after infection and no major gross lesions were observed during necropsy; histopathology did not reveal lesions directly attributable to A. cantonensis infection. Our results suggest that galliform birds are not highly susceptible to A. cantonensis infection and open a question of the importance of Galliformes in endemic areas as natural pest control, lowering the number of hosts carrying the infective larvae.
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Affiliation(s)
- Barbora Fecková
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
| | - Priyanka Djoehana
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
| | - Barbora Putnová
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
| | - Michaela Valašťanová
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
| | - Michaela Petríková
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
| | - Zdeněk Knotek
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
| | - David Modrý
- Department of Pathology and Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého tř. 1946/1, Brno, Czech Republic
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
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Lee R, Pai TY, Churcher R, Davies S, Braddock J, Linton M, Yu J, Bell E, Wimpole J, Dengate A, Collins D, Brown N, Reppas G, Jaensch S, Wun MK, Martin P, Sears W, Šlapeta J, Malik R. Further studies of neuroangiostrongyliasis (rat lungworm disease) in Australian dogs: 92 new cases (2010-2020) and results for a novel, highly sensitive qPCR assay. Parasitology 2021; 148:178-186. [PMID: 32829721 PMCID: PMC11010165 DOI: 10.1017/s0031182020001572] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 02/07/2023]
Abstract
The principal aim of this study was to optimize the diagnosis of canine neuroangiostrongyliasis (NA). In total, 92 cases were seen between 2010 and 2020. Dogs were aged from 7 weeks to 14 years (median 5 months), with 73/90 (81%) less than 6 months and 1.7 times as many males as females. The disease became more common over the study period. Most cases (86%) were seen between March and July. Cerebrospinal fluid (CSF) was obtained from the cisterna magna in 77 dogs, the lumbar cistern in f5, and both sites in 3. Nucleated cell counts for 84 specimens ranged from 1 to 146 150 cells μL-1 (median 4500). Percentage eosinophils varied from 0 to 98% (median 83%). When both cisternal and lumbar CSF were collected, inflammation was more severe caudally. Seventy-three CSF specimens were subjected to enzyme-linked immunosorbent assay (ELISA) testing for antibodies against A. cantonensis; 61 (84%) tested positive, titres ranging from <100 to ⩾12 800 (median 1600). Sixty-one CSF specimens were subjected to real-time quantitative polymerase chain reaction (qPCR) testing using a new protocol targeting a bioinformatically-informed repetitive genetic target; 53/61 samples (87%) tested positive, CT values ranging from 23.4 to 39.5 (median 30.0). For 57 dogs, it was possible to compare CSF ELISA serology and qPCR. ELISA and qPCR were both positive in 40 dogs, in 5 dogs the ELISA was positive while the qPCR was negative, in 9 dogs the qPCR was positive but the ELISA was negative, while in 3 dogs both the ELISA and qPCR were negative. NA is an emerging infectious disease of dogs in Sydney, Australia.
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Affiliation(s)
- Rogan Lee
- Parasitology Laboratory, Centre for Infectious Diseases and Microbiology Lab Services, Level 3 ICPMR, Westmead Hospital, NSW, Australia
| | - Tsung-Yu Pai
- Parasitology Laboratory, Centre for Infectious Diseases and Microbiology Lab Services, Level 3 ICPMR, Westmead Hospital, NSW, Australia
| | - Richard Churcher
- North Shore Veterinary Specialist Centre, 63 Herbert St, Artarmon, NSW2064, Australia
| | - Sarah Davies
- Veterinary Imaging Associates, PO Box 300, St. LeonardsNSW1590, Australia
| | - Jody Braddock
- Sydney Veterinary Emergency and Specialists, 675 Botany Road, RoseberryNSW2018, Australia
| | - Michael Linton
- Sydney Veterinary Emergency and Specialists, 675 Botany Road, RoseberryNSW2018, Australia
| | - Jane Yu
- Sydney School of Veterinary Science, University of SydneyNSW2006, Australia
| | - Erin Bell
- Sydney Veterinary Emergency and Specialists, 675 Botany Road, RoseberryNSW2018, Australia
| | - Justin Wimpole
- Small Animal Specialist Hospital, Level 1, 1 Richardson Place, North Ryde, NSW2113, Australia
| | - Anna Dengate
- Northside Veterinary Specialists, 335 Mona Vale Rd, Terrey Hills, NSW2084, Australia
| | - David Collins
- Northside Veterinary Specialists, 335 Mona Vale Rd, Terrey Hills, NSW2084, Australia
| | - Narelle Brown
- Animal Referral Hospital, 250 Parramatta Rd, HomebushNSW2140, Australia
| | - George Reppas
- Vetnostics, 60 Waterloo Road, 60 Waterloo Rd, Macquarie ParkNSW2113, Australia
| | - Susan Jaensch
- Vetnostics, 60 Waterloo Road, 60 Waterloo Rd, Macquarie ParkNSW2113, Australia
| | - Matthew K. Wun
- Veterinary Specialist Services, 1-15 Lexington Rd, Underwood, QLD4119, Australia
| | - Patricia Martin
- Veterinary Pathology Diagnostic Services (VPDS), Building B14, the University of Sydney NSW2006, Australia
| | - William Sears
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Jan Šlapeta
- Sydney School of Veterinary Science, University of SydneyNSW2006, Australia
- Veterinary Pathology Diagnostic Services (VPDS), Building B14, the University of Sydney NSW2006, Australia
| | - Richard Malik
- Centre for Veterinary Education, B22, University of Sydney, NSW2006, Australia
- School of Veterinary and Animal Science, Charles Sturt University, Wagga Wagga, NSW2678, Australia
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Angiostrongylus cantonensis central nervous system infection in captive callitrichids in Texas. VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS 2020; 19:100363. [PMID: 32057389 DOI: 10.1016/j.vprsr.2019.100363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 11/21/2022]
Abstract
Angiostrongylus cantonensis is a tropical lungworm of rats known for central nervous system migration in aberrant primate hosts. Here, we describe A. cantonensis infection in three captive callitrichids from a Texas zoo. The affected animals included a Goeldi's monkey (Callimico goeldii), a cotton-top tamarin (Saguinus oedipus), and a pied tamarin (Saguinus bicolor) that ranged from 8 to 18 years old. Clinical signs included lethargy, ataxia, and seizures. Histologically, these animals had an eosinophilic meningoencephalitis to myelitis and some areas had abundant macrophages and parasite migration tracts. All cases had intralesional metastrongyle parasites, and nematodes were extracted from the formalin-fixed brain specimen in one case. This extracted parasite was identified as Angiostrongylus cantonensis based on morphologic features and diagnosis was confirmed with PCR. These cases represent the first report of this parasite in non-human primates in Texas, highlighting the western spread of A. cantonensis in the continental United States.
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Angiostrongylus cantonensis: a review of its distribution, molecular biology and clinical significance as a human pathogen. Parasitology 2016; 143:1087-118. [PMID: 27225800 DOI: 10.1017/s0031182016000652] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Angiostrongylus cantonensis is a metastrongyloid nematode found widely in the Asia-Pacific region, and the aetiological agent of angiostrongyliasis; a disease characterized by eosinophilic meningitis. Rattus rats are definitive hosts of A. cantonensis, while intermediate hosts include terrestrial and aquatic molluscs. Humans are dead-end hosts that usually become infected upon ingestion of infected molluscs. A presumptive diagnosis is often made based on clinical features, a history of mollusc consumption, eosinophilic pleocytosis in cerebral spinal fluid, and advanced imaging such as computed tomography. Serological tests are available for angiostrongyliasis, though many tests are still under development. While there is no treatment consensus, therapy often includes a combination of anthelmintics and corticosteroids. Angiostrongyliasis is relatively rare, but is often associated with morbidity and sometimes mortality. Recent reports suggest the parasites' range is increasing, leading to fatalities in regions previously considered Angiostrongylus-free, and sometimes, delayed diagnosis in newly invaded regions. Increased awareness of angiostrongyliasis would facilitate rapid diagnosis and improved clinical outcomes. This paper summarizes knowledge on the parasites' life cycle, clinical aspects and epidemiology. The molecular biology of Angiostrongylus spp. is also discussed. Attention is paid to the significance of angiostrongyliasis in Australia, given the recent severe cases reported from the Sydney region.
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7
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Gordon CA, McManus DP, Jones MK, Gray DJ, Gobert GN. The Increase of Exotic Zoonotic Helminth Infections: The Impact of Urbanization, Climate Change and Globalization. ADVANCES IN PARASITOLOGY 2016; 91:311-97. [PMID: 27015952 DOI: 10.1016/bs.apar.2015.12.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Zoonotic parasitic diseases are increasingly impacting human populations due to the effects of globalization, urbanization and climate change. Here we review the recent literature on the most important helminth zoonoses, including reports of incidence and prevalence. We discuss those helminth diseases which are increasing in endemic areas and consider their geographical spread into new regions within the framework of globalization, urbanization and climate change to determine the effect these variables are having on disease incidence, transmission and the associated challenges presented for public health initiatives, including control and elimination.
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Affiliation(s)
- Catherine A Gordon
- Molecular Parasitology Laboratory, Infectious Diseases Division, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Donald P McManus
- Molecular Parasitology Laboratory, Infectious Diseases Division, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Malcolm K Jones
- Molecular Parasitology Laboratory, Infectious Diseases Division, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia; School of Veterinary Science, University of Queensland, Brisbane, QLD, Australia
| | - Darren J Gray
- Research School of Population Health, The Australian National University, Canberra, ACT, Australia
| | - Geoffrey N Gobert
- Molecular Parasitology Laboratory, Infectious Diseases Division, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
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Walker AG, Spielman D, Malik R, Graham K, Ralph E, Linton M, Ward MP. Canine neural angiostrongylosis: a case-control study in Sydney dogs. Aust Vet J 2015; 93:195-9. [DOI: 10.1111/avj.12332] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 08/19/2014] [Accepted: 08/31/2014] [Indexed: 11/30/2022]
Affiliation(s)
- AG Walker
- Faculty of Veterinary Science; The University of Sydney; Sydney New South Wales Australia
| | - D Spielman
- Faculty of Veterinary Science; The University of Sydney; Sydney New South Wales Australia
| | - R Malik
- Centre for Veterinary Education; The University of Sydney; Sydney New South Wales Australia
| | - K Graham
- North Shore Veterinary Specialist Centre; Sydney New South Wales Australia
| | - E Ralph
- Small Animal Specialist Hospital; Sydney New South Wales Australia
| | - M Linton
- Rose Bay Veterinary Hospital; Sydney New South Wales Australia
| | - MP Ward
- Faculty of Veterinary Science; The University of Sydney; Sydney New South Wales Australia
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Spread of the Rat Lungworm (Angiostrongylus cantonensis) in Giant African Land Snails (Lissachatina fulica) in Florida, USA. J Wildl Dis 2015; 51:749-53. [PMID: 25973628 DOI: 10.7589/2014-06-160] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The rat lungworm (Angiostrongylus cantonensis) is a parasitic nematode that causes rat lungworm disease. It is the leading cause of eosinophilic meningitis and is a zoonotic health risk. We confirmed the presence of A. cantonensis using species-specific, quantitative PCR in 18 of 50 (36%) giant African land snails (Lissachatina fulica) collected from Miami, Florida, US in May 2013. These snails were collected from seven of 21 core areas that the Florida Department of Agriculture and Consumer Services monitor weekly. Rat lungworms have not previously been identified in these areas. Duplicate DNA extractions of foot muscle tissue from each snail were tested. Of the seven core areas we examined, six were positive for A. cantonensis and prevalence of infection ranged from 27% to 100%. Of the 18 positive snails, only five were positive in both extractions. Our results confirm an increase in the range and prevalence of rat lungworm infection in Miami. We also emphasize the importance of extracting sufficient host tissue to minimize false negatives.
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Spratt DM. Species of Angiostrongylus (Nematoda: Metastrongyloidea) in wildlife: A review. INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2015; 4:178-89. [PMID: 25853051 PMCID: PMC4381133 DOI: 10.1016/j.ijppaw.2015.02.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/16/2015] [Accepted: 02/20/2015] [Indexed: 11/27/2022]
Abstract
Twenty-one species of Angiostrongylus plus Angiostrongylus sp. (Nematoda: Metastrongyloidea) are known currently in wildlife. These occur naturally in rodents, tupaiids, mephitids, mustelids, procyonids, felids, and canids, and aberrantly in a range of avian, marsupial and eutherian hosts including humans. Adults inhabit the pulmonary arteries and right atrium, ventricle and vena cava, bronchioles of the lung or arteries of the caecum and mesentery. All species pass first-stage larvae in the faeces of the host and all utilise slugs and/or aquatic or terrestrial snails as intermediate hosts. Gastropods are infected by ingestion or penetration of first-stage larvae; definitive hosts by ingestion of gastropods or gastropod slime. Transmission of at least one species may involve ingestion of paratenic hosts. Five developmental pathways are identified in these life cycles. Thirteen species, including Angiostrongylus sp., are known primarily from the original descriptions suggesting limited geographic distributions. The remaining species are widespread either globally or regionally, and are continuing to spread. Small experimental doses of infective larvae (ca. 20) given to normal or aberrant hosts are tolerated, although generally eliciting a granulomatous histopathological response; large doses (100-500 larvae) often result in clinical signs and/or death. Two species, A. cantonensis and A. costaricensis, are established zoonoses causing neurological and abdominal angiostrongliasis respectively. The zoonotic potential of A. mackerrasae, A. malaysiensis and A. siamensis particularly warrant investigation. Angiostrongylus cantonensis occurs in domestic animals, mammalian and avian wildlife and humans in the metropolitan areas of Brisbane and Sydney, Australia, where it has been suggested that tawny frogmouths and brushtail possums may serve as biosentinels. A major conservation issue is the devastating role A. cantonensis may play around zoos and fauna parks where captive rearing of endangered species programmes may exist and where Rattus spp. are invariably a problem.
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Affiliation(s)
- David M Spratt
- Australian National Wildlife Collection, CSIRO National Research Collections, GPO Box 1700, Canberra, ACT 2601, Australia
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Burns RE, Bicknese EJ, Qvarnstrom Y, DeLeon-Carnes M, Drew CP, Gardiner CH, Rideout BA. Cerebral Angiostrongylus cantonensis infection in a captive African pygmy falcon (Polihierax semitorquatus) in southern California. J Vet Diagn Invest 2014; 26:695-8. [DOI: 10.1177/1040638714544499] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A 10-month-old, female African pygmy falcon ( Polihierax semitorquatus) hatched and housed at the San Diego Zoo developed neurologic signs and died from a cerebral infection with the rat lungworm Angiostrongylus cantonensis. There was an associated mild nonsuppurative meningoencephalitis. This infection was diagnosed on histology and confirmed by detection of species-specific A. cantonensis DNA in formalin-fixed and frozen brain tissue by a polymerase chain reaction assay. To the authors’ knowledge, this infection has not previously been reported in a bird in the United States and has not been known to be naturally acquired in any species in this region of the world. The source of the infection was not definitively determined but was possibly feeder geckos ( Hemidactylus frenatus) imported from Southeast Asia where the parasite is endemic.
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Affiliation(s)
- Rachel E. Burns
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
| | - Elizabeth J. Bicknese
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
| | - Yvonne Qvarnstrom
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
| | - Marlene DeLeon-Carnes
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
| | - Clifton P. Drew
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
| | - Chris H. Gardiner
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
| | - Bruce A. Rideout
- Wildlife Disease Laboratories, Institute for Conservation Research, San Diego Zoo Global, San Diego, CA (Burns, Rideout)
- Veterinary Services, San Diego Zoo, San Diego, CA (Bicknese)
- Division of Parasitic Diseases and Malaria, Center for Global Health (Qvarnstrom) Centers for Disease Control and Prevention, Atlanta, GA
- Infectious Disease Pathology Branch, Division of High Consequence Pathogens and Pathology (DeLeon-Carnes, Drew) Centers for Disease Control and Prevention, Atlanta, GA
- Veterinary Pathology Service, Joint Pathology Service, Silver Spring, MD (Gardiner)
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Jackson A. Finding our veterinary heroes. Aust Vet J 2014; 91:N20-1. [PMID: 24712083 DOI: 10.1111/avj.12128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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