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Philippon J, Serrano-Martínez E, Poirotte C. Fecal avoidance and gastrointestinal parasitism in semi-free ranging woolly monkeys (Lagothrix lagotricha poeppigii). Behav Ecol Sociobiol 2023. [DOI: 10.1007/s00265-023-03317-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Köster PC, Lapuente J, Pizarro A, Prieto-Pérez L, Pérez-Tanoira R, Dashti A, Bailo B, Muadica AS, González-Barrio D, Calero-Bernal R, Ponce-Gordo F, Carmena D. Presence and genetic diversity of enteric protists in captive and semi-captive non-human primates in côte d’Ivoire, Sierra Leone, and Peru. Int J Parasitol Parasites Wildl 2022; 17:26-34. [PMID: 34976722 PMCID: PMC8688894 DOI: 10.1016/j.ijppaw.2021.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 11/25/2022]
Abstract
Little information is currently available on the occurrence and genetic diversity of pathogenic and commensal protist species in captive and semi-captive non-human primates (NHP) resident in zoological gardens or sanctuaries in low- and medium-income countries. In this molecular-based study, we prospectively collected individual faecal samples from apparently healthy NHP at the Abidjan Zoological Garden (AZG) in Côte d’Ivoire, the Tacugama Sanctuary (TS) in Sierra Leone, and the Quistococha Zoological Garden (QZG) in Peru between November 2018 and February 2020. We evaluated for the presence of pathogenic (Cryptosporidium spp., Entamoeba histolytica, Giardia duodenalis, Blastocystis sp., Enterocytozoon bieneusi, Balantioides coli) and commensal (Entamoeba dispar, Troglodytella abrassarti) protist species using PCR methods and Sanger sequencing. Giardia duodenalis was the most prevalent species found (25.9%, 30/116), followed by Blastocystis sp. (22.4%, 26/116), and E. dispar (18.1%, 21/116). We detected E. bieneusi (4.2%, 1/24) and T. abrassarti (12.5%, 3/24) only on NHP from AZG. Cryptosporidium spp., E. histolytica, and B. coli were undetected at the three sampling sites investigated here. Sequence analyses revealed the presence of zoonotic sub-assemblages BIII (n = 1) in AZG and BIV (n = 1) in TS within G. duodenalis. We identified Blastocystis subtype ST3 (100%, 6/6) in AZG, ST1 (80.0%, 12/15), ST2 (6.7%, 1/15), and ST3 (13.3%, 2/15) in TS, and ST2 (80.0%, 4/5) and ST3 (20.0%, 1/5) in QZG. The only E. bieneusi isolate detected here was identified as zoonotic genotype CAF4. Our PCR-based data indicate that potentially pathogenic protist species including G. duodenalis, Blastocystis sp., E. bieneusi, and B. coli are present at variable rates in the three NHP populations investigated here. The identification of zoonotic genotypes within these species indicates that human-NHP transmission is possible, although the extent and directionality of these events need to be elucidated in future molecular surveys. Giardia and Blastocystis are highly prevalent in confined non-human primates. Diarrhoea-causing Cryptosporidium and Entamoeba histolytica were undetected. First description of Enterocytozoon bieneusi genotype CAF4 in non-human primates. Confined non-human primates harbour protist species with zoonotic potential. Cross-species (including human) transmission is possible in zoos and sanctuaries.
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Köster PC, Renelies-Hamilton J, Dotras L, Llana M, Vinagre-Izquierdo C, Prakas P, Sneideris D, Dashti A, Bailo B, Lanza M, Jiménez-Mejías A, Muñoz-García C, Muadica AS, González-Barrio D, Rubio JM, Fuentes I, Ponce-Gordo F, Calero-Bernal R, Carmena D. Molecular Detection and Characterization of Intestinal and Blood Parasites in Wild Chimpanzees ( Pan troglodytes verus) in Senegal. Animals (Basel) 2021; 11:ani11113291. [PMID: 34828022 PMCID: PMC8614354 DOI: 10.3390/ani11113291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 11/02/2021] [Accepted: 11/11/2021] [Indexed: 11/24/2022] Open
Abstract
Simple Summary Western chimpanzees are currently listed as a Critically Endangered subspecies. Human encroachment has taken a toll on this great ape due to fragmented habitat and the exchange of pathogens. This epidemiological study investigated the occurrence and genetic diversity of intestinal and blood parasites in faecal samples from wild chimpanzees living in the Dindefelo Community Nature Reserve, Senegal. We paid special attention to potential human-driven sources of infection and transmission pathways. Potential diarrhoea-causing protist parasites (e.g., Cryptosporidium spp., Giardia duodenalis, Entamoeba histolytica) were detected at low infection rates (and densities) or absent, whereas commensals (Entamoeba dispar) or protist of uncertain pathogenicity (Blastocystis sp.) were far more abundant. We detected Sarcocystis spp. in chimpanzee faeces. Blood protist parasites such as Plasmodium spp. and Trypanosoma brucei spp. (the etiological agents of malaria and sleeping sickness, respectively, in humans) were also found at low prevalences, but microfilariae of the nematode Mansonella perstans were frequently found. Molecular analyses primarily revealed host-adapted species/genotypes and an apparent absence of gastrointestinal clinical manifestations in infected chimpanzees. Zoonotic events of still unknown frequency and directionality may have taken part between wild chimpanzees and humans sharing natural habitats and resources. Abstract Wild chimpanzee populations in West Africa (Pan troglodytes verus) have dramatically decreased as a direct consequence of anthropogenic activities and infectious diseases. Little information is currently available on the epidemiology, pathogenic significance, and zoonotic potential of protist species in wild chimpanzees. This study investigates the occurrence and genetic diversity of intestinal and blood protists as well as filariae in faecal samples (n = 234) from wild chimpanzees in the Dindefelo Community Nature Reserve, Senegal. PCR-based results revealed the presence of intestinal potential pathogens (Sarcocystis spp.: 11.5%; Giardia duodenalis: 2.1%; Cryptosporidium hominis: 0.9%), protist of uncertain pathogenicity (Blastocystis sp.: 5.6%), and commensal species (Entamoeba dispar: 18.4%; Troglodytella abrassarti: 5.6%). Entamoeba histolytica, Enterocytozoon bieneusi, and Balantioides coli were undetected. Blood protists including Plasmodium malariae (0.4%), Trypanosoma brucei (1.3%), and Mansonella perstans (9.8%) were also identified. Sanger sequencing analyses revealed host-adapted genetic variants within Blastocystis, but other parasitic pathogens (C. hominis, P. malariae, T. brucei, M. perstans) have zoonotic potential, suggesting that cross-species transmission between wild chimpanzees and humans is possible in areas where both species overlap. Additionally, we explored potential interactions between intestinal/blood protist species and seasonality and climate variables. Chimpanzees seem to play a more complex role on the epidemiology of pathogenic and commensal protist and nematode species than initially anticipated.
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Affiliation(s)
- Pamela C. Köster
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Justinn Renelies-Hamilton
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen, DK-1165 Copenhagen, Denmark;
| | - Laia Dotras
- Jane Goodall Institute Spain and Senegal, Dindefelo Biological Station, Dindefelo, Kedougou, Senegal; (L.D.); (M.L.)
| | - Manuel Llana
- Jane Goodall Institute Spain and Senegal, Dindefelo Biological Station, Dindefelo, Kedougou, Senegal; (L.D.); (M.L.)
| | | | - Petras Prakas
- Nature Research Centre, LT-08412 Vilnius, Lithuania; (P.P.); (D.S.)
| | | | - Alejandro Dashti
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Begoña Bailo
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Marta Lanza
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Alejandra Jiménez-Mejías
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Carlota Muñoz-García
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Aly S. Muadica
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
- Departamento de Ciências e Tecnologia, Universidade Licungo, Quelimane 106, Mozambique
| | - David González-Barrio
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - José M. Rubio
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Isabel Fuentes
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
| | - Francisco Ponce-Gordo
- Department of Microbiology and Parasitology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain;
| | - Rafael Calero-Bernal
- Salud Veterinaria y Zoonosis (SALUVET), Department of Animal Health, Faculty of Veterinary, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence: (R.C.-B.); (D.C.)
| | - David Carmena
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, 28220 Majadahonda, Spain; (P.C.K.); (A.D.); (B.B.); (M.L.); (A.J.-M.); (C.M.-G.); (A.S.M.); (D.G.-B.); (J.M.R.); (I.F.)
- Correspondence: (R.C.-B.); (D.C.)
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Blohm M, Hahn A, Hagen RM, Eberhardt KA, Rohde H, Leboulle G, Feldt T, Sarfo FS, Di Cristanziano V, Frickmann H, Loderstädt U. Comparison of Two Real-Time PCR Assays Targeting Ribosomal Sequences for the Identification of Cystoisospora belli in Human Stool Samples. Pathogens 2021; 10:pathogens10081053. [PMID: 34451517 PMCID: PMC8399767 DOI: 10.3390/pathogens10081053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 12/13/2022] Open
Abstract
Cystoisospora (C.) belli is a coccidian parasite associated with acute or chronic gastroenteritis in immunocompromised patients. Dissatisfactory sensitivity of microscopy as the diagnostic standard approach has been described. Here, we comparatively evaluated two real-time PCRs targeting ribosomal RNA gene sequences of C. belli in stool in a test comparison without a reference standard applying latent class analysis. Therefore, 1000 stool samples from Ghanaian HIV (human immunodeficiency virus) patients (n = 905) as well as military returnees from the tropics (n = 95) were assessed by both assays in parallel. After the exclusion of 33 samples showing PCR inhibition, 29 and 33 positive results were recorded with the 5.8S rRNA gene/ITS-2 sequence PCR and the ITS-2 sequence PCR, respectively, resulting in an accuracy-adjusted prevalence of 3.2%. Nearly perfect agreement between both assays was indicated by Fleiss’ kappa of 0.933 with sensitivity and specificity of 92.8% and 100% as well as 100% and 99.8% for the 5.8S rRNA gene/ITS-2 sequence PCR and the ITS-2 sequence PCR, respectively. Both assays proved to be suitable for the diagnosis of C. belli in human stool samples with slightly better sensitivity of the ITS-2 sequence assay, while the 5.8S rRNA gene/ITS-2 sequence PCR may be considered for confirmatory testing.
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Affiliation(s)
- Martin Blohm
- Department of Microbiology and Hospital Hygiene, Bundeswehr Hospital Hamburg, 20359 Hamburg, Germany; (M.B.); (H.F.)
| | - Andreas Hahn
- Institute of Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany;
| | - Ralf Matthias Hagen
- Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, 56070 Koblenz, Germany;
| | - Kirsten Alexandra Eberhardt
- Institute of Transfusion Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany;
- Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
| | - Holger Rohde
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf (UKE), 20251 Hamburg, Germany;
| | | | - Torsten Feldt
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Medical Center Düsseldorf, 40225 Düsseldorf, Germany;
| | - Fred Stephen Sarfo
- Department of Medicine, Kwame Nkrumah University of Science and Technology, Kumasi 00233, Ghana;
| | - Veronica Di Cristanziano
- Institute of Virology, Faculty of Medicine and University Hospital of Cologne, University of Cologne, 50935 Cologne, Germany;
| | - Hagen Frickmann
- Department of Microbiology and Hospital Hygiene, Bundeswehr Hospital Hamburg, 20359 Hamburg, Germany; (M.B.); (H.F.)
- Institute of Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany;
| | - Ulrike Loderstädt
- Department of Hospital Hygiene & Infectious Diseases, University Medicine Göttingen, 37075 Göttingen, Germany
- Correspondence: ; Tel.: +49-551-3965709
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Improving the sensitivity of gastrointestinal helminth detection using the Mini-FLOTAC technique in wild birds. Parasitol Res 2021; 120:3319-3324. [PMID: 34347167 DOI: 10.1007/s00436-021-07267-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
High-performance-validated tests are essential for successful epidemiological monitoring, surveillance of parasitic infections, and comparative studies in wildlife populations. The Mini-FLOTAC is a novel flotation-based technique for the sensitive detection and quantification of gastrointestinal parasites that is recently being explored for use in wildlife. A limitation of any flotation-based copromicroscopic method is the selection of the flotation solution (FS), which might influence the performance of the test. However, no study has compared the influence of using different FS in the Mini-FLOTAC technique for parasite detection in wild birds. Here, we evaluated the diagnostic performance of the Mini-FLOTAC in three waterbird host species using two widely used FS: saturated salt (NaCl; specific gravity 1.20) and saturated zinc sulfate (ZnSO4; specific gravity 1.35). One hundred fresh fecal samples were analyzed for parasite fecal egg counts (FEC). Regardless of the host species, fecal samples evaluated with the Mini-FLOTAC method using ZnSO4 resulted in a significantly higher detection rate and higher FEC of strongylid, capillarid, cestode, and trematode parasites, than samples analyzed with the NaCl solution. Our concise study demonstrated the importance of using an appropriate FS for the identification of parasite eggs in wildlife species, especially in hosts with an expected aggregated distribution and low parasite load such as waterbird hosts. The higher analytical sensitivity of the Mini-FLOTAC technique achieved with ZnSO4, and its applicability to fieldwork, highlights this method as a promising tool for the quantitative surveillance of parasite infections in wild bird populations.
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Adams FV, Arseneau‐Robar TJM, Bonnell TR, Stead SM, Teichroeb JA. Temporal patterns in the social network of core units in Rwenzori Angolan colobus monkeys: Effects of food availability and interunit dispersal. Ecol Evol 2021; 11:3251-3263. [PMID: 33841781 PMCID: PMC8019045 DOI: 10.1002/ece3.7274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/23/2020] [Accepted: 01/20/2021] [Indexed: 11/11/2022] Open
Abstract
Multi-level societies are complex, nested social systems where basic social groups (i.e., core units) associate in a hierarchical manner, allowing animals to adjust their group sizes in response to variables such as food availability, predation, or conspecific threat. These pressures fluctuate over time and examining the extent to which this variation affects the clustering of core units into different tiers may be instrumental in understanding the evolution of multi-level societies.The goal of our study was to determine the degree of temporal variability in interunit associations in a multi-level society of Rwenzori Angolan colobus monkey (Colobus angolensis ruwenzorii), and to determine the social and ecological factors that underlie association patterns. The C. a. ruwenzorii multi-level society consists of at least three tiers, with core units clustering into clans that share a home range in a band tier.We performed social network analyses on 21 months of association data from 13 core units (totaling 139 identifiable individuals) at Lake Nabugabo, Uganda. We described the patterns of variation in core-unit associations over time and investigated how changes in rainfall, food availability, and interunit dispersals were correlated with these associations over the short-term (month to month) and long-term (year to year).Although clans were relatively stable, larger-scale changes in association patterns included the formation of an all-male unit and the transfer of one core unit between clans (within the band tier). Seasonally, core units associated significantly more when fruit, their preferred food source, was abundant (i.e., social networks were denser and more clustered) and there was no direct effect of rainfall seasonality or young leaf availability. Male dispersals also occurred more during periods of high fruit availability, suggesting that greater band cohesion allowed males to prospect and transfer between core units. Once males transferred, their previous and new units associated significantly more with one another than with other core units for 1-2 months postdispersal. The dispersal of five males from one core unit to another in a different clan co-occurred with this core unit switching its clan affiliation.By examining temporal shifts in social network structure among core units, this study shows the interconnected roles that food availability and dispersal have in shaping the C. a. ruwenzorii multi-level social system. Our findings highlight how ecological conditions can drive association patterns, impact interunit relationships, and influence social organization.
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Affiliation(s)
- Frances V. Adams
- Department of AnthropologyUniversity of Toronto ScarboroughTorontoONCanada
| | | | - Tyler R. Bonnell
- Department of PsychologyUniversity of LethbridgeLethbridgeABCanada
| | - Samantha M. Stead
- Department of AnthropologyUniversity of Toronto ScarboroughTorontoONCanada
| | - Julie A. Teichroeb
- Department of AnthropologyUniversity of Toronto ScarboroughTorontoONCanada
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Duszynski DW. Biodiversity of the Coccidia (Apicomplexa: Conoidasida) in vertebrates: what we know, what we do not know, and what needs to be done. Folia Parasitol (Praha) 2021; 68. [PMID: 33527909 DOI: 10.14411/fp.2021.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 09/18/2020] [Indexed: 12/15/2022]
Abstract
Over the last two decades my colleagues and I have assembled the literature on a good percentage of most of the coccidians (Conoidasida) known, to date, to parasitise: Amphibia, four major lineages of Reptilia (Amphisbaenia, Chelonia, Crocodylia, Serpentes), and seven major orders in the Mammalia (Carnivora, Chiroptera, Lagomorpha, Insectivora, Marsupialia, Primates, Scandentia). These vertebrates, combined, comprise about 15,225 species; only about 899 (5.8%) of them have been surveyed for coccidia and 1,946 apicomplexan valid species names or other forms are recorded in the literature. Based on these compilations and other factors, I extrapolated that there yet may be an additional 31,381 new apicomplexans still to be discovered in just these 12 vertebrate groups. Extending the concept to all of the other extant vertebrates on Earth; i.e. lizards (6,300 spp.), rodents plus 12 minor orders of mammals (3,180 spp.), birds (10,000 spp.), and fishes (33,000 spp.) and, conservatively assuming only two unique apicomplexan species per each vertebrate host species, I extrapolate and extend my prediction that we may eventually find 135,000 new apicomplexans that still need discovery and to be described in and from those vertebrates that have not yet been examined for them! Even doubling that number is a significant underestimation in my opinion.
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Li TC, Li Z, Zhang YL, Chen WJ, Dong XL, Yang JF, Li HX, Zou FC. Assessment of the subtypes and the zoonotic risk of Blastocystis sp. of experimental macaques in Yunnan province, southwestern China. Parasitol Res 2020; 119:741-748. [PMID: 31897788 DOI: 10.1007/s00436-019-06574-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/10/2019] [Indexed: 10/25/2022]
Abstract
Blastocystis is an enteral eukaryote with an omnipresent existence in animals and humans globally. Animals have been proposed to be a major reservoir for the transmission of Blastocystis to individuals due to their high prevalence and large amount of zoonotic subtypes. However, limited data on Blastocystis infection in experimental macaques in China exists. The objective of the current study was to investigate the frequency and subtypes of Blastocystis infection in macaques in southwestern China. A total of 505 fecal samples were collected from experimental macaques in Yunnan province and were analyzed by nested PCR and phylogenetic analyses on the basis of small subunit rRNA (SSU rRNA) gene fragments. A total of 235 specimens were positive for Blastocystis sp., and the prevalence of Blastocystis sp. was 46.5% (235/505). Significant differences in prevalence were also observed among the various species of macaques (P < 0.0133, df = 2, χ2 = 8.64) and the different feed types (P < 0.0093, df = 1, χ2 = 6.77). Moreover, three zoonotic subtypes, ST1, ST3, and ST5, were identified by DNA sequence analysis. There were mainly single subtype infections with some mixed subtype infections, and the predominant subtype was ST3. The results suggested a high prevalence and diversified subtypes in macaques in Yunnan province, southwestern China. Macaques are likely to be potential reservoirs capable of zoonotic transmission of Blastocystis sp. to humans. To our knowledge, this study is the first large-scale systematic analysis of Blastocystis sp. colonization in Yunnan province in the subtropics of China; these results contribute to the in-depth study of genetic characteristics and the prevention, control, and treatment of Blastocystis sp. in macaques in Yunnan province and other regions.
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Affiliation(s)
- Ting-Cui Li
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China
| | - Zhao Li
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China
| | - Yu-Lin Zhang
- Kunming Primate Research Center of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan province, People's Republic of China
| | - Wen-Jie Chen
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China
| | - Xian-Lan Dong
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China
| | - Jian-Fa Yang
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China
| | - Hong-Xia Li
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China
| | - Feng-Cai Zou
- Key Laboratory of Veterinary Public Health of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201, Yunnan province, People's Republic of China.
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Barelli C, Gonzalez-Astudillo V, Mundry R, Rovero F, Hauffe HC, Gillespie TR. Altitude and human disturbance are associated with helminth diversity in an endangered primate, Procolobus gordonorum. PLoS One 2019; 14:e0225142. [PMID: 31800582 PMCID: PMC6892551 DOI: 10.1371/journal.pone.0225142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/29/2019] [Indexed: 11/19/2022] Open
Abstract
Gastrointestinal parasites colonizing the mammalian gut influence the host immune system and health. Parasite infections, mainly helminths, have been studied intensively in both humans and non-human animals, but relatively rarely within a conservation framework. The Udzungwa red colobus monkey (Procolobus gordonorum) is an endangered endemic primate species living in the Udzungwa Mountains of Tanzania, a global biodiversity hotspot. Since this endemic primate species is highly sensitive to human disturbance, here we investigate whether habitat type (driven by natural and human-induced factors) is associated with helminth diversity. Using standard flotation and sedimentation techniques, we analyzed 251 fecal samples belonging to 25 social groups from four different forest blocks within the Udzungwa Mountains. Five parasitic helminth taxa were recovered from Udzungwa red colobus, including Trichuris sp., Strongyloides fulleborni, S. stercoralis, a strongylid nematode and Colobenterobius sp. We used Generalized Linear Mixed Models to explore the contribution of habitat type, altitude and fecal glucocorticoid levels (as biomarkers of stress) in predicting gut parasite variation. Although some parasites (e.g., Trichuris sp.) infected more than 50% of individuals, compared to others (e.g., Colobenterobius sp.) that infected less than 3%, both parasite richness and prevalence did not differ significantly across forests, even when controlling for seasonality. Stress hormone levels also did not predict variation in parasite richness, while altitude could explain it resulting in lower richness at lower altitudes. Because human activities causing disturbance are concentrated mainly at lower altitudes, we suggest that protection of primate forest habitat preserves natural diversity at both macro- and microscales, and that the importance of the latter should not be underestimated.
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Affiliation(s)
- Claudia Barelli
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione E. Mach, San Michele all’Adige, Trento, Italy
- MUSE–Science Museum, Tropical Biodiversity Section, Trento, Italy
| | - Viviana Gonzalez-Astudillo
- Department of Environmental Sciences and Program in Population Biology, Ecology and Evolutionary Biology, Emory University, Atlanta, GA, United States of America
- Pathology Resident, California Animal Health & Food Safety Laboratory, University of California, Davis, CA, United States of America
| | - Roger Mundry
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Francesco Rovero
- MUSE–Science Museum, Tropical Biodiversity Section, Trento, Italy
- Department of Biology, University of Florence, Florence, Italy
| | - Heidi C. Hauffe
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione E. Mach, San Michele all’Adige, Trento, Italy
| | - Thomas R. Gillespie
- Department of Environmental Sciences and Program in Population Biology, Ecology and Evolutionary Biology, Emory University, Atlanta, GA, United States of America
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, United States of America
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10
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Oliveira-Arbex AP, David ÉB, Tenório MDS, Cicchi PJP, Patti M, Coradi ST, Lucheis SB, Jim J, Guimarães S. Diversity of Blastocystis subtypes in wild mammals from a zoo and two conservation units in southeastern Brazil. INFECTION GENETICS AND EVOLUTION 2019; 78:104053. [PMID: 31683006 DOI: 10.1016/j.meegid.2019.104053] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 09/23/2019] [Accepted: 09/26/2019] [Indexed: 10/25/2022]
Abstract
The enteric protist Blastocystis is one of the most commonly parasite reported in humans and a variety of animal hosts worldwide. Regarding genetic diversity, at least 17 subtypes (STs) have been identified in mammals and birds, with eight of them (ST1-8) infecting both humans and animals. Recently, isolates from wild mammalian species have been genetically characterized, however data is still scarce, mainly in Latin America. Here, we aimed to verify the occurrence and genetic diversity of Blastocystis in captive wild mammals kept in one zoo and in two units of protection and conservation in southeastern Brazil. A total of 78 fecal samples (14 pooled and 64 individual samples) were recovered from 102 wild mammals of 35 species included in the following orders: Primates, Carnivora, Artiodactyla, Pilosa, Rodentia and Marsupialia. Zoo and units staff were invited to participated but only 16 fecal samples could be screened. Based on the sequence analyses of SSUrDNA gene, out of 29 PCR products from animal samples, 51.7% (15/29) were successfully sequenced and five Blastocystis subtypes were identified as follows: ST1 (2/15; 13.3%), ST2 (2/15; 13.3%), ST3 (4/15; 26.6%), ST5 (2/15; 13.3%) and ST8 (5/14; 33.3%). Only four isolates from humans were sequenced and identified as ST1 (2 isolates), ST2 and ST3. It was observed that Blastocystis infecting non-human primates belong to ST1 and ST2 and mainly to ST3 and ST8, artiodactyls ST5, carnivores ST1 and ST5 and rodents ST1. In addition, this present study reports some interesting findings: (1) 63% (12/19) of Blastocystis isolates from animals and employees belonged to the potentially zoonotic subtypes ST1-ST3; (2) most of these isolates displayed high identity with publicly available DNA sequences from non-human primates and humans, including primate handlers; (3) Blastocystis ST5 was found infecting the northern tiger cat, a native South American felid and one of the species facing a high risk of extinction in Brazil.
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Affiliation(s)
- Ana Paula Oliveira-Arbex
- Department of Parasitology, Institute of Bioscience, São Paulo State University (UNESP), Botucatu, SP, Brazil; Integrated Faculties of Bauru (FIB), Bauru, SP, Brazil
| | - Érica Boarato David
- Department of Parasitology, Institute of Bioscience, São Paulo State University (UNESP), Botucatu, SP, Brazil; Sagrado Coração University (USC), Department of Health Sciences, Bauru, SP, Brazil
| | - Michely da Silva Tenório
- Tropical Diseases Postgraduate Program, Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Paulo José Pyles Cicchi
- Department of Zoology, Institute of Bioscience, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Mariella Patti
- Sagrado Coração University (USC), Department of Health Sciences, Bauru, SP, Brazil
| | | | | | - Jorge Jim
- Department of Zoology, Institute of Bioscience, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Semíramis Guimarães
- Department of Parasitology, Institute of Bioscience, São Paulo State University (UNESP), Botucatu, SP, Brazil.
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Thompson RCA, Ash A. Molecular epidemiology of Giardia and Cryptosporidium infections - What's new? INFECTION GENETICS AND EVOLUTION 2019; 75:103951. [PMID: 31279819 DOI: 10.1016/j.meegid.2019.103951] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/30/2019] [Accepted: 07/02/2019] [Indexed: 12/22/2022]
Abstract
New information generated since 2016 from the application of molecular tools to infections with Giardia and Cryptosporidium is critically summarised. In the context of molecular epidemiology, nomenclature, taxonomy, in vitro culture, detection, zoonoses, population genetics and pathogenicity, are covered. Whole genome sequencing has had the greatest impact in the last three years. Future advances will provide a much better understanding of the zoonotic potential of both parasites, their diversity and how this is linked to pathogenesis in different hosts.
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Affiliation(s)
- R C A Thompson
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia.
| | - A Ash
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia
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12
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Anthropozoonotic significance, risk factors and spatial distribution of Giardia spp. infections in quenda ( Isoodon obesulus) in the greater Perth region, Western Australia. INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE 2019; 9:42-48. [PMID: 30993073 PMCID: PMC6449742 DOI: 10.1016/j.ijppaw.2019.03.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/24/2019] [Accepted: 03/24/2019] [Indexed: 12/02/2022]
Abstract
Giardia spp. infections in wildlife populations have been linked to anthropogenic sources of infection and public health risk in a diversity of wildlife species and ecological locations worldwide. Quenda (Isoodon obesulus) remain in many urbanised areas of Perth, Western Australia, and can be gregarious in their interactions with humans and domestic animals. In a previous study, a high prevalence of Giardia spp. infection was identified amongst quenda trapped in urbanised environments and bushland in Perth, Western Australia. This study aimed to expand on that finding, by: identifying and estimating the prevalence of particular species of Giardia infecting quenda, and thus clarifying their anthropozoonotic/public health significance; identifying risk factors for Giardia spp. infection; and investigating putative associations between infection and indicators of ill health. Giardia spp. infections in Perth quenda are overwhelmingly of the host-adapted, non-zoonotic Giardia peramelis (apparent prevalence 22.2%; 95% CI 17.7–27.4%), indicating that quenda are not a substantial veterinary public health risk regarding this parasite genus. However, one case each of Giardia duodenalis and Giardia canis genotype D were identified in quenda trapped in urbanised environments (apparent prevalences 0.4%; 95% CI 0.1–1.9%). In quenda, Giardia spp. infection is associated with Cryptosporidium infection and flea infection intensity, which may reflect host population density, or regarding Cryptosporidium spp., similar transmission pathways or synergistic interactions between these taxa within the host. Giardia spp. infection is not associated with the measured indicators of ill health in Perth quenda, but this finding is representative of Giardia peramelis only, given the apparent rarity of other Giardia sp. infections in this study. Giardia spp. infections in Perth quenda are rarely of anthropozoonotic species. Anthropozoonotic Giardia spp. only found in quenda in urbanised environments. Quenda Giardia spp. infection risk is associated with Cryptosporidium spp. No association identified between G. peramelis infection and ill health indicators.
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Abdullah D, Ola-Fadunsin S, Ruviniyia K, Gimba F, Chandrawathani P, Lim Y, Jesse F, Sharma R. Molecular detection and epidemiological risk factors associated with Cryptosporidium infection among cattle in Peninsular Malaysia. Food Waterborne Parasitol 2019; 14:e00035. [PMID: 32095605 PMCID: PMC7033977 DOI: 10.1016/j.fawpar.2019.e00035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/09/2019] [Accepted: 01/24/2019] [Indexed: 01/06/2023] Open
Abstract
Enteric protozoa infection among cattle may pose a threat to productivity and survival leading to negative impacts on the livestock industry. A number of these pathogens are also known to be zoonotic and are of public health concern. Despite the importance of these enteric protozoa to both animal and human health, there remains a paucity of published information on the epidemiological risk factors that may be associated with bovine cryptosporidiosis in Southeast Asia. The present study was undertaken to determine the molecular prevalence and associated risk factors for Cryptosporidium infection among beef and dairy cattle in Peninsular Malaysia. Faecal samples were collected from 824 cattle in 39 farms (526 beef and 298 dairy) situated in 33 locations throughout the country, and subjected to PCR detection for Cryptosporidium using primers targeting the 18S SSUrRNA gene. Epidemiological variables including host, environment and management factors were subjected to univariate and multivariate logistic regression analyses to determine the potential risk factors for infection. The prevalence of Cryptosporidium among the cattle was 12.5%, with significant difference in the infection rate among the various breeds. There was no significant effect of gender, and both the beef and dairy cattle were at similar odds for infection. The younger cattle had a significantly higher infection rate compared to the older animals. Multivariate analysis revealed that deworming practice, distance to human settlement, geographical location (zone) and farm management system were significant risk factors associated with Cryptosporidium infection. The cattle that were reared on farms located in the northeast of the country, closest (≤200 m) to human settlements, reared extensively, and dewormed every four months were at highest risk of infection. The present study constitutes the first attempt to analyze the multivariable epidemiological risk factors involved in bovine cryptosporidiosis in Malaysia and in Southeast Asia. It is envisaged that the data obtained will facilitate better control and prevention measures for Cryptosporidium infection among cattle in the region. Due to the potential zoonotic nature of the infection, serious steps should be instituted for animal treatment and biohazard waste management on local cattle farms.
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Affiliation(s)
- D.A. Abdullah
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Animal Production Techniques, Northern Technical University, Mosul, Iraq
| | - S.D. Ola-Fadunsin
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - K. Ruviniyia
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - F.I. Gimba
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - P. Chandrawathani
- Department of Veterinary Services, Ministry of Agriculture and Agro-Based Industry, Wisma Tani, Block Podium, Lot 4G1, Presint 4, 62630 Putrajaya, Malaysia
| | - Y.A.L. Lim
- Department of Parasitology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - F.F.A. Jesse
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - R.S.K. Sharma
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Vaisusuk K, Saijuntha W, Sedlak S, Thanchomnang T, Pilap W, Suksavate W, Stensvold CR, Tantrawatpan C. Blastocystis subtypes detected in long-tailed macaques in Thailand-Further evidence of cryptic host specificity. Acta Trop 2018; 184:78-82. [PMID: 28887122 DOI: 10.1016/j.actatropica.2017.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/01/2017] [Accepted: 09/04/2017] [Indexed: 10/18/2022]
Abstract
Blastocystis is an enteric parasitic protist with a widespread distribution in a variety of human and non-human hosts and supposedly a source of zoonotic transmission. This study aimed to determine the frequency and distribution of Blastocystis subtypes in free-ranging Macaca fascicularis (long-tailed macaques, LTMs) in Thailand. A total of 628 faecal samples were collected from free-ranging LTMs inhabiting fourteen tourist attraction sites in Thailand. Fresh faecal samples were individually cultured in Jones' medium, and Blastocystis-positive samples were subtyped using nuclear small subunit ribosomal DNA (SSU rDNA) sequencing. Two hundred and sixty-three (41.87%) samples were positive by culture, and 197 and 154 were successfully SSU rDNA-amplified and sequenced, respectively. Three subtypes (ST1, ST2, and ST3) comprising 19 alleles were observed. ST3 was the most common subtype detected (36.55%), followed by ST2 and ST1 (24.37% and 17.26%, respectively). Some subtype alleles not previously observed were identified. A couple of strains appeared similar to those found in humans as evidenced by SSU rDNA allelic profiles, while further evidence of cryptic host specificity emerged. This study provides the first data on Blastocystis subtypes in non-human primates in Thailand and confirms the trend observed in other Old-World countries with regard to the colonization rate and subtype distribution.
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Multilocus genotyping of Giardia duodenalis infecting rabbits in Ogun State, Nigeria. VETERINARY PARASITOLOGY- REGIONAL STUDIES AND REPORTS 2018; 13:171-176. [PMID: 31014868 DOI: 10.1016/j.vprsr.2018.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 06/15/2018] [Accepted: 06/17/2018] [Indexed: 11/20/2022]
Abstract
Giardiasis is a cosmopolitan gastrointestinal protozoal parasite that infects humans and various animals worldwide. To assess the zoonotic transmission potential of Giardia, molecular characterization is required. We are unaware of any report on the genotypes of Giardia infecting rabbits in Nigeria. Molecular detection and genotyping of Giardia duodenalis were conducted in a herd of adult Chinchilla rabbits (Oryctolagus cuniculus) managed on the Teaching and Research farm of the Federal University of Agriculture, Abeokuta located in a southwestern state of Nigeria by analysis of the small-subunit ribosomal RNA (ssu rRNA), glutamate dehydrogenase (gdh), triosephosphate isomerase (tpi) and beta-giardin (bg) genes. An overall prevalence of 72.3% (60/83) was recorded in the rabbits with no statistically significant (p > .05) influence of sex on the distribution of the infection in the herd. All the 19 isolates amplified at the four genetic loci were identified as G. duodenalis assemblage BIV by multiple alignment analysis of their consensus sequences. Novel nucleotide substitutions were identified in two isolates at the ssu rRNA locus. Phylogenetic analysis revealed that all ssu rRNA genotypes were closely related to G. duodenalis assemblage B of cattle and human origin. Findings of this study suggest that the rabbits harbour potentially zoonotic assemblage BIV that portends a high risk to students and staff of the University who are in regular contact with the animals.
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Habig B, Doellman MM, Woods K, Olansen J, Archie EA. Social status and parasitism in male and female vertebrates: a meta-analysis. Sci Rep 2018; 8:3629. [PMID: 29483573 PMCID: PMC5827031 DOI: 10.1038/s41598-018-21994-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 02/14/2018] [Indexed: 12/21/2022] Open
Abstract
Social status is an important predictor of parasite risk in vertebrates. To date, general frameworks to explain status-related variation in parasitism have remained elusive. In this meta-analysis, we evaluated five hypotheses proposed to explain status-related variation in parasitism in male and female vertebrates by leveraging variation in hierarchy type, mating system, parasite transmission mode, and allostatic load to test associated predictions. Our meta-analyses span 66 analyses (26 studies) of male vertebrates (two orders and five classes), and 62 analyses (13 studies) of female vertebrates (four vertebrate orders). Contrary to the prevailing paradigm that low status is linked to poor health, we found that dominant animals typically faced higher parasite risk than subordinates. This pattern was especially well-supported in analyses of males versus females, in linear versus egalitarian hierarchies, in mating systems where dominance rank predicts mating effort, and for contact- and environmentally-transmitted parasites rather than vector-borne parasites. These findings supported the priority-of-access and tradeoffs hypotheses suggesting that variation in parasitism is driven by rank-associated differences in exposure to parasites and mating effort. Together, these results suggest that high parasite risk might sometimes be an unappreciated cost of high rank, and conversely, reduced parasite risk might be a benefit of social subordination.
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Affiliation(s)
- Bobby Habig
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN, 46556, USA.
| | - Meredith M Doellman
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN, 46556, USA
| | - Kourtney Woods
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN, 46556, USA
| | - Jonathan Olansen
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN, 46556, USA
| | - Elizabeth A Archie
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN, 46556, USA
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17
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Metabarcoding Gastrointestinal Nematodes in Sympatric Endemic and Nonendemic Species in Ranomafana National Park, Madagascar. INT J PRIMATOL 2018. [DOI: 10.1007/s10764-017-0010-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Hillman AE, Lymbery AJ, Elliot AD, Andrew Thompson RC. Urban environments alter parasite fauna, weight and reproductive activity in the quenda (Isoodon obesulus). THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:1466-1478. [PMID: 28764110 DOI: 10.1016/j.scitotenv.2017.07.086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 06/22/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
Some wildlife species are capable of surviving in urbanised environments. However, the implications of urbanisation on wildlife health, and public health regarding zoonoses, are often unknown. Quenda (syn. southern brown bandicoots, Isoodon obesulus) survive in many areas of Perth, Australia, despite urbanisation. This study investigated differences in gastrointestinal and macroscopic ecto-parasitic infections, morphometrics and reproductive status between bushland and urban dwelling quenda. 287 quenda in the greater Perth region were captured and sampled for faeces (to detect gastrointestinal parasites), blood (to detect Toxoplasma gondii antibodies), ectoparasites, and morphometrics. Data were analysed using multivariable logistic and linear regression. Most parasitic infections identified in quenda were of native parasite taxa that are either not known to, or considered highly unlikely to, infect humans or domestic animals. However, stickfast fleas (Echidnophaga spp.) were present at low prevalences and intensities, and Giardia spp., Cryptosporidium spp. and Amblyomma spp. infections require further investigation to clarify their anthropozoonotic significance. Quenda captured in urbanised environments had differing odds of or intensity of certain parasitic infections, compared to those in bushland - likely attributable to quenda population density, and in some cases the availability of other host species or anthropogenic sources of infection. Urbanised environments were associated with an increase in net weight of adult male quenda by 189.0g (95% CI 68.6-309.5g; p=0.002; adjusted R2=0.06) and adult female quenda by 140.1g (95% CI 3.9-276.3g; p=0.044; adjusted R2=0.07), with study findings suggesting a tendency towards obesity in urbanised environments. Adult female quenda in bushland had increased odds of an active pouch (adjusted OR=4.89, 95% CI 1.7-14.5), suggesting decreased reproductive activity in quenda from urbanised environments. These results highlight the subtle, yet extensive impacts that urbanised environments may have on wildlife ecology, even for those species which apparently adjust well to urbanisation.
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Affiliation(s)
- Alison E Hillman
- School of Veterinary and Life Sciences, Murdoch University, 90 South St, Murdoch, WA 6150, Australia; Alison Hillman-email; 90 South St, Murdoch, Perth, Australia 6150.
| | - Alan J Lymbery
- School of Veterinary and Life Sciences, Murdoch University, 90 South St, Murdoch, WA 6150, Australia
| | - Aileen D Elliot
- School of Veterinary and Life Sciences, Murdoch University, 90 South St, Murdoch, WA 6150, Australia
| | - R C Andrew Thompson
- School of Veterinary and Life Sciences, Murdoch University, 90 South St, Murdoch, WA 6150, Australia
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Klaus A, Zimmermann E, Röper KM, Radespiel U, Nathan S, Goossens B, Strube C. Co-infection patterns of intestinal parasites in arboreal primates (proboscis monkeys, Nasalis larvatus) in Borneo. Int J Parasitol Parasites Wildl 2017; 6:320-329. [PMID: 29988805 PMCID: PMC6031963 DOI: 10.1016/j.ijppaw.2017.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 08/28/2017] [Accepted: 09/14/2017] [Indexed: 12/15/2022]
Abstract
Non-human primates of South-East Asia remain under-studied concerning parasite epidemiology and co-infection patterns. Simultaneously, efforts in conservation demand knowledge of parasite abundance and biodiversity in threatened species. The Endangered proboscis monkey, Nasalis larvatus, a primate flagship species for conservation in Borneo, was investigated in the present study. Habitat loss and fragmentation are among the greatest threats to bachelor and harem groups of this folivorous colobine. Designed as a follow-up study, prevalence and co-infection status of intestinal parasites from N. larvatus in a protected area in Malaysian Borneo were analyzed from fecal samples using a flotation method. For the first time, the intestinal parasite co-infection patterns were examined using quantitative analyses. Overall, 92.3% of fecal samples (N = 652) were positive for helminth eggs. Five helminth groups were detected: (1) trichurids (82.7% prevalence) including Trichuris spp. (82.1%) and Anatrichosoma spp. (1.4%), (2) strongyles (58.9%) including Trichostrongylus spp. (48.5%) and Oesophagostomum/Ternidens spp. (22.8%), (3) Strongyloides fuelleborni (32.7%), (4) Ascaris lumbricoides (8.6%), and (5) Enterobius spp. (5.5%). On average, an individual was co-infected with two different groups. Significant positive associations were found for co-infections of trichurids with strongyles and S. fuelleborni as well as S. fuelleborni with A. lumbricoides and strongyles. This study shows a high prevalence of various gastrointestinal helminths with potential transmission pathways primarily related to soil and with zoonotic relevance in wild proboscis monkeys in their remaining natural habitats. Observed positive associations of trichurids with strongyles and Strongyloides spp. may result from the high prevalence of trichurids. Similarly, positive associations between Strongyloides and Ascaris were found, both of which typically occur predominantly in juvenile hosts. These findings should be considered when proposing conservation actions in altered habitats nearby human settlements and when managing captive populations.
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Affiliation(s)
- Annette Klaus
- Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Buenteweg 17, 30559 Hannover, Germany
- Institute of Zoology, University of Veterinary Medicine Hannover, Hannover, Buenteweg 17, 30559 Hannover, Germany
| | - Elke Zimmermann
- Institute of Zoology, University of Veterinary Medicine Hannover, Hannover, Buenteweg 17, 30559 Hannover, Germany
| | - Kathrin Monika Röper
- Institute of Zoology, University of Veterinary Medicine Hannover, Hannover, Buenteweg 17, 30559 Hannover, Germany
| | - Ute Radespiel
- Institute of Zoology, University of Veterinary Medicine Hannover, Hannover, Buenteweg 17, 30559 Hannover, Germany
| | - Senthilvel Nathan
- Sabah Wildlife Department, 5th Floor, B Block, Wisma MUIS, 88100 Kota Kinabalu, Sabah, Malaysia
| | - Benoit Goossens
- Sabah Wildlife Department, 5th Floor, B Block, Wisma MUIS, 88100 Kota Kinabalu, Sabah, Malaysia
- Organisms and Environment Division, School of Biosciences, Cardiff University, The Sir Martin Evans Building, Museum Avenue, Cardiff CF10 3AX, United Kingdom
- Danau Girang Field Centre, C/o Sabah Wildlife Department, Kota Kinabalu, Sabah, Malaysia
- Sustainable Places Research Institute, Cardiff University, 33 Park Pl, Cardiff CF10 3BA, United Kingdom
| | - Christina Strube
- Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Buenteweg 17, 30559 Hannover, Germany
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Squire SA, Yang R, Robertson I, Ayi I, Ryan U. Molecular characterization of Cryptosporidium and Giardia in farmers and their ruminant livestock from the Coastal Savannah zone of Ghana. INFECTION GENETICS AND EVOLUTION 2017; 55:236-243. [PMID: 28941990 DOI: 10.1016/j.meegid.2017.09.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 08/18/2017] [Accepted: 09/19/2017] [Indexed: 12/28/2022]
Abstract
Cryptosporidium and Giardia are major causes of diarrhoea in developing countries including Ghana, however, nothing is known about the species and subtypes of Cryptosporidium and Giardia in farmers and their ruminant livestock in this country. A total of 925 faecal samples from humans (n=95), cattle (n=328), sheep (n=217) and goats (n=285), were screened for Cryptosporidium and Giardia by quantitative PCR (qPCR) at the 18S rRNA and glutamate dehydrogenase (gdh) loci respectively. Cryptosporidium positives were typed by sequence analysis of 18S and 60kDa glycoprotein (gp60) loci amplicons. Giardia positives were typed at the triose phosphate isomerase (tpi), beta-giardin (bg) and gdh loci. The prevalence of Cryptosporidium and Giardia by qPCR was 8.4% and 10.5% in humans, 26.5% and 8.5% in cattle, 34.1% and 12.9% in sheep, and 33.3% and 12.3% in goat faecal samples, respectively. G. duodenalis assemblages A and B were detected in humans and assemblage E was detected in livestock. Cryptosporidium parvum was the only species identified in humans; C. andersoni, C. bovis, C. ryanae and C. ubiquitum were identified in cattle; C. xiaoi, C. ubiquitum and C. bovis in sheep; and C. xiaoi, C. baileyi and C. parvum in goats. This is the first molecular study of Cryptosporidium and Giardia in livestock in Ghana. The identification of zoonotic species and the identification of C. parvum subtype IIcA5G3q in livestock, which has previously been identified in children in Ghana, suggests potential zoonotic transmission. Further studies on larger numbers of human and animal samples, and on younger livestock are required to better understand the epidemiology and transmission of Cryptosporidium and Giardia in Ghana.
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Affiliation(s)
- Sylvia Afriyie Squire
- School of Veterinary and Life Sciences, Murdoch University, 90 South Street, Murdoch, Western Australia, Australia; Council for Scientific and Industrial Research-Animal Research Institute, P. O. Box AH 20, Achimota, Accra, Ghana.
| | - Rongchang Yang
- School of Veterinary and Life Sciences, Murdoch University, 90 South Street, Murdoch, Western Australia, Australia.
| | - Ian Robertson
- School of Veterinary and Life Sciences, Murdoch University, 90 South Street, Murdoch, Western Australia, Australia; China-Australia Joint Research and Training Center for Veterinary Epidemiology, Huazhong Agricultural University, Wuhan, China.
| | - Irene Ayi
- Department of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, P. O. Box LG 581, Legon, Accra, Ghana.
| | - Una Ryan
- School of Veterinary and Life Sciences, Murdoch University, 90 South Street, Murdoch, Western Australia, Australia.
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Squire SA, Ryan U. Cryptosporidium and Giardia in Africa: current and future challenges. Parasit Vectors 2017; 10:195. [PMID: 28427454 PMCID: PMC5397716 DOI: 10.1186/s13071-017-2111-y] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/24/2017] [Indexed: 12/15/2022] Open
Abstract
Cryptosporidium and Giardia are important causes of diarrhoeal illness. Adequate knowledge of the molecular diversity and geographical distribution of these parasites and the environmental and climatic variables that influence their prevalence is important for effective control of infection in at-risk populations, yet relatively little is known about the epidemiology of these parasites in Africa. Cryptosporidium is associated with moderate to severe diarrhoea and increased mortality in African countries and both parasites negatively affect child growth and development. Malnutrition and HIV status are also important contributors to the prevalence of Cryptosporidium and Giardia in African countries. Molecular typing of both parasites in humans, domestic animals and wildlife to date indicates a complex picture of both anthroponotic, zoonotic and spill-back transmission cycles that requires further investigation. For Cryptosporidium, the only available drug (nitazoxanide) is ineffective in HIV and malnourished individuals and therefore more effective drugs are a high priority. Several classes of drugs with good efficacy exist for Giardia, but dosing regimens are suboptimal and emerging resistance threatens clinical utility. Climate change and population growth are also predicted to increase both malnutrition and the prevalence of these parasites in water sources. Dedicated and co-ordinated commitments from African governments involving "One Health" initiatives with multidisciplinary teams of veterinarians, medical workers, relevant government authorities, and public health specialists working together are essential to control and prevent the burden of disease caused by these parasites.
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Affiliation(s)
- Sylvia Afriyie Squire
- School of Veterinary and Life Sciences, Murdoch University, Perth, Australia
- Council for Scientific and Industrial Research, Animal Research Institute, Accra, Ghana
| | - Una Ryan
- School of Veterinary and Life Sciences, Murdoch University, Perth, Australia
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Ghai RR, Fugère V, Chapman CA, Goldberg TL, Davies TJ. Sickness behaviour associated with non-lethal infections in wild primates. Proc Biol Sci 2016; 282:rspb.2015.1436. [PMID: 26311670 DOI: 10.1098/rspb.2015.1436] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Non-lethal parasite infections are common in wildlife, but there is little information on their clinical consequences. Here, we pair infection data from a ubiquitous soil-transmitted helminth, the whipworm (genus Trichuris), with activity data from a habituated group of wild red colobus monkeys (Procolobus rufomitratus tephrosceles) in Kibale National Park, Uganda. We use mixed-effect models to examine the relationship between non-lethal parasitism and red colobus behaviour. Our results indicate that red colobus increased resting and decreased more energetically costly behaviours when shedding whipworm eggs in faeces. Temporal patterns of behaviour also changed, with individuals switching behaviour less frequently when whipworm-positive. Feeding frequency did not differ, but red colobus consumption of bark and two plant species from the genus Albizia, which are used locally in traditional medicines, significantly increased when animals were shedding whipworm eggs. These results suggest self-medicative plant use, although additional work is needed to verify this conclusion. Our results indicate sickness behaviours, which are considered an adaptive response by hosts during infection. Induction of sickness behaviour in turn suggests that these primates are clinically sensitive to non-lethal parasite infections.
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Thompson R, Ash A. Molecular epidemiology of Giardia and Cryptosporidium infections. INFECTION GENETICS AND EVOLUTION 2016; 40:315-323. [DOI: 10.1016/j.meegid.2015.09.028] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 09/23/2015] [Accepted: 09/24/2015] [Indexed: 11/28/2022]
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Foerster S, Kithome K, Cords M, Monfort SL. Social status and helminth infections in female forest guenons (Cercopithecus mitis). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 158:55-66. [DOI: 10.1002/ajpa.22764] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 04/21/2015] [Accepted: 04/26/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Steffen Foerster
- Department of Evolutionary Anthropology; Duke University; Durham NC
- National Museums of Kenya; Institute of Primate Research; Nairobi Kenya
| | - Kiio Kithome
- National Museums of Kenya; Institute of Primate Research; Nairobi Kenya
| | - Marina Cords
- Department of Ecology; Evolution and Environmental Biology, Columbia University; NY
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Habig B, Archie EA. Social status, immune response and parasitism in males: a meta-analysis. Philos Trans R Soc Lond B Biol Sci 2015; 370:20140109. [PMID: 25870395 PMCID: PMC4410375 DOI: 10.1098/rstb.2014.0109] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2015] [Indexed: 12/15/2022] Open
Abstract
In male vertebrates, two conflicting paradigms--the energetic costs of high dominance rank and the chronic stress of low rank--have been proposed to explain patterns of immune function and parasitism. To date, neither paradigm has provided a complete explanation for status-related differences in male health. Here, we applied meta-analyses to test for correlations between male social status, immune responses and parasitism. We used an ecoimmunological framework, which proposes that males should re-allocate investment in different immune components depending on the costs of dominance or subordination. Spanning 297 analyses, from 77 studies on several vertebrate taxa, we found that most immune responses were similar between subordinate and dominant males, and neither dominant nor subordinate males consistently invested in predictable immune components. However, subordinate males displayed significantly lower delayed-type hypersensitivity and higher levels of some inflammatory cytokines than dominant males, while dominant males exhibited relatively lower immunoglobulin responses than subordinate males. Despite few differences in immunity, dominant males exhibited consistently higher parasitism than subordinate males, including protozoan blood parasites, ectoparasites and gastrointestinal helminths. We discuss our results in the context of the costs of dominance and subordination and advocate future work that measures both parasitism and immune responses in wild systems.
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Affiliation(s)
- Bobby Habig
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN 46556, USA
| | - Elizabeth A Archie
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Sciences Center, Notre Dame, IN 46556, USA
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Kouassi RYW, McGraw SW, Yao PK, Abou-Bacar A, Brunet J, Pesson B, Bonfoh B, N’goran EK, Candolfi E. Diversity and prevalence of gastrointestinal parasites in seven non-human primates of the Taï National Park, Côte d'Ivoire. Parasite 2015; 22:1. [PMID: 25619957 PMCID: PMC4306024 DOI: 10.1051/parasite/2015001] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 01/14/2015] [Indexed: 11/14/2022] Open
Abstract
Parasites and infectious diseases are well-known threats to primate populations. The main objective of this study was to provide baseline data on fecal parasites in the cercopithecid monkeys inhabiting Côte d'Ivoire's Taï National Park. Seven of eight cercopithecid species present in the park were sampled: Cercopithecus diana, Cercopithecus campbelli, Cercopithecus petaurista, Procolobus badius, Procolobus verus, Colobus polykomos, and Cercocebus atys. We collected 3142 monkey stool samples between November 2009 and December 2010. Stool samples were processed by direct wet mount examination, formalin-ethyl acetate concentration, and MIF (merthiolate, iodine, formalin) concentration methods. Slides were examined under microscope and parasite identification was based on the morphology of cysts, eggs, and adult worms. A total of 23 species of parasites was recovered including 9 protozoa (Entamoeba coli, Entamoeba histolytica/dispar, Entamoeba hartmanni, Endolimax nana, Iodamoeba butschlii, Chilomastix mesnili, Giardia sp., Balantidium coli, and Blastocystis sp.), 13 nematodes (Oesophagostomum sp., Ancylostoma sp., Anatrichosoma sp., Capillariidae Gen. sp. 1, Capillariidae Gen. sp. 2, Chitwoodspirura sp., Subulura sp., spirurids [cf Protospirura muricola], Ternidens sp., Strongyloides sp., Trichostrongylus sp., and Trichuris sp.), and 1 trematode (Dicrocoelium sp.). Diversity indices and parasite richness were high for all monkey taxa, but C. diana, C. petaurista, C. atys, and C. campbelli exhibited a greater diversity of parasite species and a more equitable distribution. The parasitological data reported are the first available for these cercopithecid species within Taï National Park.
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Affiliation(s)
- Roland Yao Wa Kouassi
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Unité de Formation et de Recherche Biosciences, Université Félix Houphouët Boigny 22 BP 770 Abidjan 22 Côte d’Ivoire
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Centre Suisse de Recherches Scientifiques en Côte d’Ivoire 01 BP 1303 Abidjan 01 Côte d’Ivoire
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Laboratoire de Parasitologie et de Mycologie Médicale, Plateau Technique de Microbiologie, Hôpitaux Universitaires de Strasbourg 1 rue Koeberlé 67000
Strasbourg France
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Institut de Parasitologie et de Pathologie Tropicale, EA 7292, Fédération de Médecine Translationnelle, Université de Strasbourg 3 rue Koeberlé 67000
Strasbourg France
| | - Scott William McGraw
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Department of Anthropology, Ohio State University, 4064 Smith Laboratory 174 West 18th Avenue Columbus Ohio
43210 USA
| | - Patrick Kouassi Yao
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Unité de Formation et de Recherche Biosciences, Université Félix Houphouët Boigny 22 BP 770 Abidjan 22 Côte d’Ivoire
| | - Ahmed Abou-Bacar
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Laboratoire de Parasitologie et de Mycologie Médicale, Plateau Technique de Microbiologie, Hôpitaux Universitaires de Strasbourg 1 rue Koeberlé 67000
Strasbourg France
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Institut de Parasitologie et de Pathologie Tropicale, EA 7292, Fédération de Médecine Translationnelle, Université de Strasbourg 3 rue Koeberlé 67000
Strasbourg France
| | - Julie Brunet
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Laboratoire de Parasitologie et de Mycologie Médicale, Plateau Technique de Microbiologie, Hôpitaux Universitaires de Strasbourg 1 rue Koeberlé 67000
Strasbourg France
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Laboratoire de Parasitologie, Faculté de Pharmacie, Université de Strasbourg 74 route du Rhin 67401
Illkirch cedex France
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Institut de Parasitologie et de Pathologie Tropicale, EA 7292, Fédération de Médecine Translationnelle, Université de Strasbourg 3 rue Koeberlé 67000
Strasbourg France
| | - Bernard Pesson
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Laboratoire de Parasitologie et de Mycologie Médicale, Plateau Technique de Microbiologie, Hôpitaux Universitaires de Strasbourg 1 rue Koeberlé 67000
Strasbourg France
| | - Bassirou Bonfoh
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Centre Suisse de Recherches Scientifiques en Côte d’Ivoire 01 BP 1303 Abidjan 01 Côte d’Ivoire
| | - Eliezer Kouakou N’goran
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Unité de Formation et de Recherche Biosciences, Université Félix Houphouët Boigny 22 BP 770 Abidjan 22 Côte d’Ivoire
| | - Ermanno Candolfi
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Laboratoire de Parasitologie et de Mycologie Médicale, Plateau Technique de Microbiologie, Hôpitaux Universitaires de Strasbourg 1 rue Koeberlé 67000
Strasbourg France
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Institut de Parasitologie et de Pathologie Tropicale, EA 7292, Fédération de Médecine Translationnelle, Université de Strasbourg 3 rue Koeberlé 67000
Strasbourg France
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Regan CS, Yon L, Hossain M, Elsheikha HM. Prevalence of Entamoeba species in captive primates in zoological gardens in the UK. PeerJ 2014; 2:e492. [PMID: 25097822 PMCID: PMC4121542 DOI: 10.7717/peerj.492] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 06/30/2014] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to determine the prevalence of amoebic infection in non-human primates (NHPs) from six Zoological gardens in the United Kingdom. Initially, 126 faecal samples were collected from 37 individually identified NHPs at Twycross Zoo, UK, and were subjected to microscopic examination. A subsequent, nationwide experiment included 350 faecal samples from 89 individually identified NHPs and 73 unidentified NHPs from a number of UK captive wildlife facilities: Twycross Zoo (n = 60), Colchester Zoo (n = 3), Edinburgh Zoo (n = 6), Port Lympne Wild Animal Park (n = 58), Howletts Wild Animal Park (n = 31), and Cotswold Wildlife Park (n = 4). Samples were examined by PCR and sequencing using four specific primer sets designed to differentiate between the pathogenic E. histolytica, the non-pathogenic E. dispar, and non-pathogenic uninucleate cyst-producing Entamoeba species. In the first experiment, Entamoeba was detected in 30 primates (81.1%). Six (16.2%) primates were infected with E. histolytica species complex. The highest carriage of Entamoeba species was found in Old World Colobinae primates. In the nationwide experiment, molecular analysis of faecal samples revealed notable rates of Entamoeba infection (101 samples, 28.9%), including one sample infected with E. histolytica, 14 samples with E. dispar, and 86 samples with uninucleated-cyst producing Entamoeba species. Sequences of positive uninucleated-cyst producing Entamoeba samples from Twycross Zoo clustered with the E. polecki reference sequences ST4 reported in Homo sapiens, and are widely separated from other Entamoeba species. These findings suggest a low prevalence of the pathogenic Entamoeba infection, but notable prevalence of non-pathogenic E. polecki infection in NHPs in the UK.
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Affiliation(s)
- Carl S Regan
- School of Veterinary Medicine and Science, University of Nottingham , Loughborough, Leicestershire , UK
| | - Lisa Yon
- School of Veterinary Medicine and Science, University of Nottingham , Loughborough, Leicestershire , UK
| | - Maqsud Hossain
- School of Veterinary Medicine and Science, University of Nottingham , Loughborough, Leicestershire , UK
| | - Hany M Elsheikha
- School of Veterinary Medicine and Science, University of Nottingham , Loughborough, Leicestershire , UK
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Reverse zoonotic disease transmission (zooanthroponosis): a systematic review of seldom-documented human biological threats to animals. PLoS One 2014; 9:e89055. [PMID: 24586500 PMCID: PMC3938448 DOI: 10.1371/journal.pone.0089055] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/04/2013] [Indexed: 11/24/2022] Open
Abstract
Background Research regarding zoonotic diseases often focuses on infectious diseases animals have given to humans. However, an increasing number of reports indicate that humans are transmitting pathogens to animals. Recent examples include methicillin-resistant Staphylococcus aureus, influenza A virus, Cryptosporidium parvum, and Ascaris lumbricoides. The aim of this review was to provide an overview of published literature regarding reverse zoonoses and highlight the need for future work in this area. Methods An initial broad literature review yielded 4763 titles, of which 4704 were excluded as not meeting inclusion criteria. After careful screening, 56 articles (from 56 countries over three decades) with documented human-to-animal disease transmission were included in this report. Findings In these publications, 21 (38%) pathogens studied were bacterial, 16 (29%) were viral, 12 (21%) were parasitic, and 7 (13%) were fungal, other, or involved multiple pathogens. Effected animals included wildlife (n = 28, 50%), livestock (n = 24, 43%), companion animals (n = 13, 23%), and various other animals or animals not explicitly mentioned (n = 2, 4%). Published reports of reverse zoonoses transmission occurred in every continent except Antarctica therefore indicating a worldwide disease threat. Interpretation As we see a global increase in industrial animal production, the rapid movement of humans and animals, and the habitats of humans and wild animals intertwining with great complexity, the future promises more opportunities for humans to cause reverse zoonoses. Scientific research must be conducted in this area to provide a richer understanding of emerging and reemerging disease threats. As a result, multidisciplinary approaches such as One Health will be needed to mitigate these problems.
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Thompson RCA. Parasite zoonoses and wildlife: One Health, spillover and human activity. Int J Parasitol 2013; 43:1079-88. [PMID: 23892130 PMCID: PMC7126848 DOI: 10.1016/j.ijpara.2013.06.007] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 06/21/2013] [Accepted: 06/22/2013] [Indexed: 01/16/2023]
Abstract
This review examines parasite zoonoses and wildlife in the context of the One Health triad that encompasses humans, domestic animals, wildlife and the changing ecosystems in which they live. Human (anthropogenic) activities influence the flow of all parasite infections within the One Health triad and the nature and impact of resulting spillover events are examined. Examples of spillover from wildlife to humans and/or domestic animals, and vice versa, are discussed, as well as emerging issues, particularly the need for parasite surveillance of wildlife populations. Emphasis is given to Trypanosoma cruzi and related species in Australian wildlife, Trichinella, Echinococcus, Giardia, Baylisascaris, Toxoplasma and Leishmania.
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Affiliation(s)
- R C Andrew Thompson
- School of Veterinary and Health Sciences, Murdoch University, Murdoch, WA 6150, Australia.
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30
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Behie AM, Kutz S, Pavelka MS. Cascading Effects of Climate Change: Do Hurricane-damaged Forests Increase Risk of Exposure to Parasites? Biotropica 2013. [DOI: 10.1111/btp.12072] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Alison M. Behie
- School of Archaeology and Anthropology; The Australian National University; AD Hope Building Canberra ACT 0200 Australia
| | - Susan Kutz
- Department of Ecosystem and Public Health; Faculty of Veterinary Medicine; University of Calgary; 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
| | - Mary S. Pavelka
- The Department of Anthropology; The University of Calgary; 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
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Kiffner C, Stanko M, Morand S, Khokhlova IS, Shenbrot GI, Laudisoit A, Leirs H, Hawlena H, Krasnov BR. Sex-biased parasitism is not universal: evidence from rodent-flea associations from three biomes. Oecologia 2013; 173:1009-22. [PMID: 23636459 DOI: 10.1007/s00442-013-2664-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 04/14/2013] [Indexed: 11/28/2022]
Abstract
The distribution of parasites among individual hosts is characterised by high variability that is believed to be a result of variations in host traits. To find general patterns of host traits affecting parasite abundance, we studied flea infestation of nine rodent species from three different biomes (temperate zone of central Europe, desert of Middle East and tropics of East Africa). We tested for independent and interactive effects of host sex and body mass on the number of fleas harboured by an individual host while accounting for spatial clustering of host and parasite sampling and temporal variation. We found no consistent patterns of the effect of host sex and body mass on flea abundance either among species within a biome or among biomes. We found evidence for sex-biased flea infestation in just five host species (Apodemus agrarius, Myodes glareolus, Microtus arvalis, Gerbillus andersoni, Mastomys natalensis). In six rodent species, we found an effect of body mass on flea abundance (all species mentioned above and Meriones crassus). This effect was positive in five species and negative in one species (Microtus arvalis). In M. glareolus, G. andersoni, M. natalensis, and M. arvalis, the relationship between body mass and flea abundance was mediated by host sex. This was manifested in steeper change in flea abundance with increasing body mass in male than female individuals (M. glareolus, G. andersoni, M. natalensis), whereas the opposite pattern was found in M. arvalis. Our findings suggest that sex and body mass are common determinants of parasite infestation in mammalian hosts, but neither of them follows universal rules. This implies that the effect of host individual characteristics on mechanisms responsible for flea acquisition may be manifested differently in different host species.
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Affiliation(s)
- Christian Kiffner
- Department of Wildlife, Fish and Conservation Biology, University of California, Davis, Davis, CA, USA,
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32
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Abstract
SUMMARYBlastocystis SSU-rDNA sequence data from 317 captive and free-living non-human primates (NHPs) representing 30 genera of apes, Old and New World (OW and NW) monkeys and prosimians were analysed to investigate subtype (ST) and allele distribution among hosts. Excluding 20 mixed ST infections, 27% of the sequences belonged to ST1, 22% to ST2, 34% to ST3, 1% to ST4, 4% to ST5, 11% to ST8, <1% to ST13 and 1% to ST15. The study confirmed cryptic host specificity of ST1 and ST3; conversely, considerable overlap in ST2 alleles exists among humans and NHPs. Subtype distribution in humans and NHPs differs mainly in that ST4 is rarely reported in NHPs while ST5 and ST8 are both unusual in humans. This may be due to host specificity and/or the apparent geographically restricted range of some subtypes. While the distribution of ST1, ST2 and ST3 was independent of NHP group or geographical association, ST5 was seen only in apes and OW monkeys and ST8 primarily in arboreal NHPs and only in species native to Asia or South America.
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Abstract
In this review, the current status of genomic and proteomic research on Giardia is examined in terms of evolutionary biology, phylogenetic relationships and taxonomy. The review also describes how characterising genetic variation in Giardia from numerous hosts and endemic areas has provided a better understanding of life cycle patterns, transmission and the epidemiology of Giardia infections in humans, domestic animals and wildlife. Some progress has been made in relating genomic information to the phenotype of Giardia, and as a consequence, new information has been obtained on aspects of developmental biology and the host-parasite relationship. However, deficiencies remain in our understanding of pathogenesis and host specificity, highlighting the limitations of currently available genomic datasets.
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Leles D, Gardner SL, Reinhard K, Iñiguez A, Araujo A. Are Ascaris lumbricoides and Ascaris suum a single species? Parasit Vectors 2012; 5:42. [PMID: 22348306 PMCID: PMC3293767 DOI: 10.1186/1756-3305-5-42] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Accepted: 02/20/2012] [Indexed: 11/29/2022] Open
Abstract
Since the original description and naming of Ascaris lumbricoides from humans by Linnaeus in 1758 and later of Ascaris suum from pigs by Goeze 1782, these species have been considered to be valid. Four hypotheses relative to the conspecificity or lack thereof (and thus origin of these species) are possible: 1) Ascaris lumbricoides (usually infecting humans) and Ascaris suum (recorded mostly from pigs) are both valid species, with the two species originating via a speciation event from a common ancestor sometime before the domestication of pigs by humans, or 2) Ascaris lumbricoides in humans is derived directly from the species A. suum found in pigs with A. suum then existing as a persistent ancestor after formation of A. lumbricoides, or 3) Ascaris suum is derived directly from A. lumbricoides with the persistent ancestor being A. lumbricoides and A. suum being the newly derived species, and finally, 4) Ascaris lumbricoides and A. suum are the same species, this hypothesis being supported by studies showing both low morphological and low genetic divergence at several genes. We present and discuss paleoparasitological and genetic evidence that complement new data to evaluate the origin and evolution of Ascaris spp. in humans and pigs, and the uniqueness of the species in both hosts. Finally, we conclude that Ascaris lumbricoides and A. suum are a single species and that the name A. lumbricoides Linnaeus 1758 has taxonomic priority; therefore A. suum Goeze 1782 should be considered a synonym of A. lumbricoides.
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Affiliation(s)
- Daniela Leles
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, Universidade Federal Fluminense, MIP-UFF, Rua Professor Hernani Melo 101, São Domingos, Niterói, 24210-130, RJ, Brazil
| | - Scott L Gardner
- School of Biological Sciences, University of Nebraska- Lincoln, Harold W. Manter Laboratory of Parasitology W 529 Nebraska Hall University of Nebraska-Lincoln Lincoln, Nebraska 68588-0514 USA
| | - Karl Reinhard
- School of Natural Resource Sciences, University of Nebraska at Lincoln, 6940 Van Dorn Street Ste 105, Lincoln, Nebraska 68506, USA
| | - Alena Iñiguez
- Intituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, 21045-900, RJ, Brazil
| | - Adauto Araujo
- Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, Rua Leopoldo Bulhões 1480, Manguinhos, Rio de Janeiro, 21041-210, RJ, Brazil
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Lymbery AJ, Thompson RCA. The molecular epidemiology of parasite infections: tools and applications. Mol Biochem Parasitol 2011; 181:102-16. [PMID: 22027028 DOI: 10.1016/j.molbiopara.2011.10.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 10/10/2011] [Accepted: 10/12/2011] [Indexed: 10/16/2022]
Abstract
Molecular epidemiology, broadly defined, is the application of molecular genetic techniques to the dynamics of disease in a population. In this review, we briefly describe molecular and analytical tools available for molecular epidemiological studies and then provide an overview of how they can be applied to better understand parasitic disease. A range of new molecular tools have been developed in recent years, allowing for the direct examination of parasites from clinical or environmental samples, and providing access to relatively cheap, rapid, high throughput molecular assays. At the same time, new analytical approaches, in particular those derived from coalescent theory, have been developed to provide more robust estimates of evolutionary processes and demographic parameters from multilocus, genotypic data. To date, the primary application of molecular epidemiology has been to provide specific and sensitive identification of parasites and to resolve taxonomic issues, particularly at the species level and below. Population genetic studies have also been used to determine the extent of genetic diversity among populations of parasites and the degree to which this diversity is associated with different host cycles or epidemiologically important phenotypes. Many of these studies have also shed new light on transmission cycles of parasites, particularly the extent to which zoonotic transmission occurs, and on the prevalence and importance of mixed infections with different parasite species or intraspecific variants (polyparasitism). A major challenge, and one which is now being addressed by an increasing number of studies, is to find and utilize genetic markers for complex traits of epidemiological significance, such as drug resistance, zoonotic potential and virulence.
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Affiliation(s)
- A J Lymbery
- Fish Health Unit, School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch WA 6150, Australia.
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Benavides JA, Huchard E, Pettorelli N, King AJ, Brown ME, Archer CE, Appleton CC, Raymond M, Cowlishaw G. From parasite encounter to infection: multiple-scale drivers of parasite richness in a wild social primate population. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2011; 147:52-63. [PMID: 21989507 DOI: 10.1002/ajpa.21627] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Accepted: 09/08/2011] [Indexed: 01/01/2023]
Abstract
Host parasite diversity plays a fundamental role in ecological and evolutionary processes, yet the factors that drive it are still poorly understood. A variety of processes, operating across a range of spatial scales, are likely to influence both the probability of parasite encounter and subsequent infection. Here, we explored eight possible determinants of parasite richness, comprising rainfall and temperature at the population level, ranging behavior and home range productivity at the group level, and age, sex, body condition, and social rank at the individual level. We used a unique dataset describing gastrointestinal parasites in a terrestrial subtropical vertebrate (chacma baboons, Papio ursinus), comprising 662 fecal samples from 86 individuals representing all age-sex classes across two groups over two dry seasons in a desert population. Three mixed models were used to identify the most important factor at each of the three spatial scales (population, group, individual); these were then standardized and combined in a single, global, mixed model. Individual age had the strongest influence on parasite richness, in a convex relationship. Parasite richness was also higher in females and animals in poor condition, albeit at a lower order of magnitude than age. Finally, with a further halving of effect size, parasite richness was positively correlated to day range and temperature. These findings indicate that a range of factors influence host parasite richness through both encounter and infection probabilities but that individual-level processes may be more important than those at the group or population level.
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Affiliation(s)
- Julio A Benavides
- CNRS - Institut des Sciences de l'Evolution, Université Montpellier II, Place Eugène Bataillon, France.
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37
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Petrášová J, Uzlíková M, Kostka M, Petrželková K, Huffman M, Modrý D. Diversity and host specificity of Blastocystis in syntopic primates on Rubondo Island, Tanzania. Int J Parasitol 2011; 41:1113-20. [DOI: 10.1016/j.ijpara.2011.06.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Revised: 06/13/2011] [Accepted: 06/16/2011] [Indexed: 11/25/2022]
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38
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Abstract
A growing number of enteric protozoan species are considered to have zoonotic potential. Their clinical impact varies and in many cases is poorly defined. Similarly, the epidemiology of infections, particularly the role of non-human hosts, requires further study. In this review, new information on the life cycles and transmission of Giardia, Cryptosporidium, Entamoeba, Blastocystis and Balantidium are examined in the context of zoonotic potential, as well as polyparasitism and clinical significance.
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39
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Gastrointestinal Parasites of Indigenous and Introduced Primate Species of Rubondo Island National Park, Tanzania. INT J PRIMATOL 2010. [DOI: 10.1007/s10764-010-9439-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Parasites, emerging disease and wildlife conservation. Int J Parasitol 2010; 40:1163-70. [PMID: 20452354 DOI: 10.1016/j.ijpara.2010.04.009] [Citation(s) in RCA: 150] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2010] [Revised: 04/27/2010] [Accepted: 04/29/2010] [Indexed: 11/24/2022]
Abstract
In this review some emerging issues of parasite infections in wildlife, particularly in Australia, are considered. We discuss the importance of understanding parasite biodiversity in wildlife in terms of conservation, the role of wildlife as reservoirs of parasite infection, and the role of parasites within the broader context of the ecosystem. Using a number of parasite species, the value of undertaking longitudinal surveillance in natural systems using non-invasive sampling and molecular tools to characterise infectious agents is illustrated in terms of wildlife health, parasite biodiversity and ecology.
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41
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Giardia in Western Australian wildlife. Vet Parasitol 2010; 170:207-11. [PMID: 20211528 DOI: 10.1016/j.vetpar.2010.02.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Revised: 02/03/2010] [Accepted: 02/10/2010] [Indexed: 11/21/2022]
Abstract
Giardia has been found in numerous species of mammalian wildlife but very little information is available on the species and strains/genotypes that occur naturally in mammals in the wild. Recently, a novel genotype of Giardia was described in Western Australia, in the Southern brown bandicoot, or quenda (Isoodon obesulus). In order to determine the host range, distribution and prevalence of this novel 'quenda' 'genotype of Giardia, a comprehensive survey of this marsupial and cohabiting mammalian species was undertaken throughout the mainland and some off-shore islands of Western Australia, including urban areas. The overall prevalence of Giardia in 351 wildlife samples was low, with only 4.8% (17) samples testing positive. Amongst the 51 quenda samples, 11.8% (6) were positive for the 'quenda' genotype, 5.9% (3) for assemblage C/D and 2% (1) for assemblages A and E. This study has demonstrated that Giardia is a remarkably rare parasite in native wildlife in Western Australia, raising questions about the ecology of Giardia infections in wildlife.
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42
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Clough D, Heistermann M, Kappeler PM. Host intrinsic determinants and potential consequences of parasite infection in free-ranging red-fronted lemurs (Eulemur fulvus rufus). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2010; 142:441-52. [DOI: 10.1002/ajpa.21243] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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