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Jaffe JE, Metzger S, Mätz-Rensing K, Ribas A, Wittig RM, Leendertz FH. Oesophagostomum stephanostomum causing parasitic granulomas in wild chimpanzees (Pan troglodytes verus) of Taï National Park, Côte d'Ivoire. Am J Primatol 2024; 86:e23652. [PMID: 38807168 DOI: 10.1002/ajp.23652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 05/07/2024] [Accepted: 05/19/2024] [Indexed: 05/30/2024]
Abstract
Nematodes belonging to the genus Oesophagostomum frequently infect wild chimpanzees (Pan troglodytes) across widely separated field sites. Nodular lesions (granulomas) containing Oesophagostomum are commonly seen in the abdomen of infected chimpanzees post-mortem. At Taï National Park, Côte d'Ivoire, previous studies have identified larvae of a variety of Oesophagostomum spp. in wild chimpanzee stool, based on sequencing of larval DNA, and nodular lesions associated with Oesophagostomum, identified morphologically to the genus level but not sequenced. Here we present three recent cases of parasitic granulomas found post-mortem in chimpanzees at Taï. We complement descriptions of gross pathology, histopathology and parasitology with PCR and sequencing of DNA isolated from the parasitic nodules and from adult worms found inside the nodules. In all three cases, we identify Oesophagostomum stephanostomum as the causative agent. The sequences from this study were identical to the only other published sequences from nodules in nonhuman primates-those from the wild chimpanzees of Gombe, Tanzania.
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Affiliation(s)
- Jenny E Jaffe
- Taï Chimpanzee Project, Centre Suisse de Recherches Scientifiques, Abidjan, Côte d'Ivoire
- Epidemiology of Highly Infectious Pathogens, Robert Koch Institute, Berlin, Germany
- Department of Veterinary Medicine, Freie Universität, Berlin, Germany
| | - Sonja Metzger
- Taï Chimpanzee Project, Centre Suisse de Recherches Scientifiques, Abidjan, Côte d'Ivoire
- Epidemiology of Highly Infectious Pathogens, Robert Koch Institute, Berlin, Germany
| | - Kerstin Mätz-Rensing
- German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
| | - Alexis Ribas
- Parasitology Section, Department of Biology, Healthcare and Environment, Faculty of Pharmacy and Food Science; Institut de Recerca de la Biodiversitat (IRBio), University of Barcelona, Barcelona, Spain
| | - Roman M Wittig
- Taï Chimpanzee Project, Centre Suisse de Recherches Scientifiques, Abidjan, Côte d'Ivoire
- Ape Social Mind Lab, Institute of Cognitive Sciences Marc Jeannerod, Bron, France
| | - Fabian H Leendertz
- Epidemiology of Highly Infectious Pathogens, Robert Koch Institute, Berlin, Germany
- Helmholtz Institute for One Health, Greifswald, Germany
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Sirima C, Bizet C, Hamou H, Červená B, Lemarcis T, Esteban A, Peeters M, Mpoudi Ngole E, Mombo IM, Liégeois F, Petrželková KJ, Boussinesq M, Locatelli S. Soil-transmitted helminth infections in free-ranging non-human primates from Cameroon and Gabon. Parasit Vectors 2021; 14:354. [PMID: 34225777 PMCID: PMC8259424 DOI: 10.1186/s13071-021-04855-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/18/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Zoonotic diseases are a serious threat to both public health and animal conservation. Most non-human primates (NHP) are facing the threat of forest loss and fragmentation and are increasingly living in closer spatial proximity to humans. Humans are infected with soil-transmitted helminths (STH) at a high prevalence, and bidirectional infection with NHP has been observed. The aim of this study was to determine the prevalence, genetic diversity, distribution and presence of co-infections of STH in free-ranging gorillas, chimpanzees and other NHP species, and to determine the potential role of these NHP as reservoir hosts contributing to the environmental sustenance of zoonotic nematode infections in forested areas of Cameroon and Gabon. METHODS A total of 315 faecal samples from six species of NHPs were analysed. We performed PCR amplification, sequencing and maximum likelihood analysis of DNA fragments of the internal transcribed spacer 2 (ITS2) nuclear ribosomal DNA to detect the presence and determine the genetic diversity of Oesophagostomum spp., Necator spp. and Trichuris spp., and of targeted DNA fragments of the internal transcribed spacer 1 (ITS1) to detect the presence of Ascaris spp. RESULTS Necator spp. infections were most common in gorillas (35 of 65 individuals), but also present in chimpanzees (100 of 222 individuals) and in one of four samples from greater spot-nosed monkeys. These clustered with previously described type II and III Necator spp. Gorillas were also the most infected NHP with Oesophagostomum (51/65 individuals), followed by chimpanzees (157/222 individuals), mandrills (8/12 samples) and mangabeys (7/12 samples), with O. stephanostomum being the most prevalent species. Oesophagostomum bifurcum was detected in chimpanzees and a red-capped mangabey, and a non-classified Oesophagostomum species was detected in a mandrill and a red-capped mangabey. In addition, Ternidens deminutus was detected in samples from one chimpanzee and three greater spot-nosed monkeys. A significant relative overabundance of co-infections with Necator and Oesophagostomum was observed in chimpanzees and gorillas. Trichuris sp. was detected at low prevalence in a gorilla, a chimpanzee and a greater spot-nosed monkey. No Ascaris was observed in any of the samples analysed. CONCLUSIONS Our results on STH prevalence and genetic diversity in NHP from Cameroon and Gabon corroborate those obtained from other wild NHP populations in other African countries. Future research should focus on better identifying, at a molecular level, the species of Necator and Oesophagostomum infecting NHP and determining how human populations may be affected by increased proximity resulting from encroachment into sylvatic STH reservoir habitats.
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Affiliation(s)
- C. Sirima
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - C. Bizet
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - H. Hamou
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - B. Červená
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 65 Brno, Czech Republic
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, Brno, Czech Republic
| | - T. Lemarcis
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - A. Esteban
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - M. Peeters
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - E. Mpoudi Ngole
- Projet Prévention du Sida Au Cameroun (PRESICA) and Virology Laboratory IMPM/IRD, Yaoundé, Cameroon
| | - I. M. Mombo
- Centre Interdisciplinaire de Recherches Médicales de Franceville, BP 769, Franceville, Gabon
| | - F. Liégeois
- Present Address: Institut de Recherche Pour Le Développement (IRD), Maladies Infectieuses Et Vecteurs : Écologie, Génétique, Évolution et Contrôle (MIVEGEC), IRD 224-CNRS 5290–University of Montpellier, Montpellier, France
| | - K. J. Petrželková
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 65 Brno, Czech Republic
- Biology Centre, Institute of Parasitology, Czech Academy of Sciences, Ceske Budejovice, Czech Republic
| | - M. Boussinesq
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
| | - S. Locatelli
- Institut de Recherche Pour Le Développement (IRD), UMI 233-TransVIHMI-INSERM U1175–University of Montpellier, Montpellier, France
- Present Address: Institut de Recherche Pour Le Développement (IRD), Maladies Infectieuses Et Vecteurs : Écologie, Génétique, Évolution et Contrôle (MIVEGEC), IRD 224-CNRS 5290–University of Montpellier, Montpellier, France
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Frias L, Hasegawa H, Chua TH, Sipangkui S, Stark DJ, Salgado-Lynn M, Goossens B, Keuk K, Okamoto M, MacIntosh AJJ. Parasite community structure in sympatric Bornean primates. Int J Parasitol 2021; 51:925-933. [PMID: 33862059 DOI: 10.1016/j.ijpara.2021.03.003] [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: 11/03/2020] [Revised: 03/09/2021] [Accepted: 03/13/2021] [Indexed: 11/26/2022]
Abstract
Parasites are important components of ecosystems, influencing trophic networks, competitive interactions and biodiversity patterns. Nonetheless, we are not nearly close to disentangling their complex roles in natural systems. Southeast Asia falls within global areas targeted as most likely to source parasites with zoonotic potential, where high rates of land conversion and fragmentation have altered the circulation of wildlife species and their parasites, potentially resulting in altered host-parasite systems. Although the overall biodiversity in the region predicts equally high, or even higher, parasite diversity, we know surprisingly little about wild primate parasites, even though this constitutes the first step towards a more comprehensive understanding of parasite transmission processes. Here, we characterise the gastrointestinal helminth parasite assemblages of a community of Bornean primates living along the Kinabatangan floodplain in Sabah (Malaysian Borneo), including two species endemic to the island. Through parasitological analyses, and by using several measures of parasite infection as proxies for parasite diversity and distribution, we show that (i) most parasite taxonomic groups are not limited to a single host, suggesting a greater flexibility for habitat disturbance, (ii) parasite infracommunities of nocturnal primates differ from their diurnal counterparts, reflecting both phylogenetic and ecological constraints, and (iii) soil-transmitted helminths such as whipworm, threadworm and nodule worm are widespread across the primate community. This study also provides new parasite records for southern pig-tailed macaques (Macaca nemestrina), silvered langurs (Trachypithecus cristatus) and Western tarsiers (Cephalopachus bancanus) in the wild, while adding to the limited records for the other primate species in the community. Given the information gap regarding primate-parasite associations in the region, the information presented here should prove relevant for future studies of parasite biodiversity and infectious disease ecology in Asia and elsewhere.
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Affiliation(s)
- Liesbeth Frias
- Asian School of the Environment, Nanyang Technological University, Singapore; Primate Research Institute, Kyoto University, Inuyama, Japan; Danau Girang Field Centre, Lower Kinabatangan Wildlife Sanctuary, Sabah, Malaysia.
| | - Hideo Hasegawa
- Department of Biomedicine, Faculty of Medicine, Oita University, Oita, Japan
| | - Tock H Chua
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | | | - Danica J Stark
- Danau Girang Field Centre, Lower Kinabatangan Wildlife Sanctuary, Sabah, Malaysia; Cardiff School of Biosciences, Cardiff University, Cardiff, UK
| | - Milena Salgado-Lynn
- Danau Girang Field Centre, Lower Kinabatangan Wildlife Sanctuary, Sabah, Malaysia; Cardiff School of Biosciences, Cardiff University, Cardiff, UK; Wildlife Health, Genetic and Forensic Laboratory, Kota Kinabalu, Sabah, Malaysia; Sustainable Places Research Institute, Cardiff University, Cardiff, UK
| | - Benoit Goossens
- Danau Girang Field Centre, Lower Kinabatangan Wildlife Sanctuary, Sabah, Malaysia; Sabah Wildlife Department, Kota Kinabalu, Sabah, Malaysia; Cardiff School of Biosciences, Cardiff University, Cardiff, UK; Sustainable Places Research Institute, Cardiff University, Cardiff, UK
| | - Kenneth Keuk
- Primate Research Institute, Kyoto University, Inuyama, Japan
| | | | - Andrew J J MacIntosh
- Primate Research Institute, Kyoto University, Inuyama, Japan; Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
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Yalcindag E, Stuart P, Hasegawa H, Streit A, Doležalová J, Morrogh-Bernard H, Cheyne SM, Nurcahyo W, Foitová I. Genetic characterization of nodular worm infections in Asian Apes. Sci Rep 2021; 11:7226. [PMID: 33790353 PMCID: PMC8012698 DOI: 10.1038/s41598-021-86518-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/16/2021] [Indexed: 11/09/2022] Open
Abstract
Parasitic nematodes of Oesophagostomum spp., commonly known, as 'nodular worms' are emerging as the most widely distributed and prevalent zoonotic nematodes. Oesophagostomum infections are well documented in African non-human primates; however, the taxonomy, distribution and transmission of Oesophagostomum in Asian non-human primates are not adequately studied. To better understand which Oesophagostomum species infect Asian non-human primates and determine their phylogeny we analysed 55 faecal samples from 50 orangutan and 5 gibbon individuals from Borneo and Sumatra. Both microscopy and molecular results revealed that semi-wild animals had higher Oesophagostomum infection prevalence than free ranging animals. Based on sequence genotyping analysis targeting the Internal transcribed spacer 2 of rDNA, we report for the first time the presence of O. aculeatum in Sumatran apes. Population genetic analysis shows that there is significant genetic differentiation between Bornean and Sumatran O. aculeatum populations. Our results clearly reveal that O. aculeatum in free-ranging animals have a higher genetic variation than those in semi-wild animals, demonstrating that O. aculeatum is circulating naturally in wildlife and zoonotic transmission is possible. Further studies should be conducted to better understand the epidemiology and dynamics of Oesophagostomum transmission between humans, non-human primates and other wild species and livestock in Southeast Asia.
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Affiliation(s)
- Erhan Yalcindag
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic
- The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, UK
| | - Peter Stuart
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic
- Department of Biological and Pharmaceutical Sciences, Munster Technological University, Tralee, Co. Kerry, Ireland
| | - Hideo Hasegawa
- Department of Biomedicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama, Yufu, Oita, 879-5593, Japan
| | - Adrian Streit
- Department Evolutionary Biology, Max Planck Institute for Developmental Biology, Max-Planck-Ring 9, 72076, Tübingen, Germany
| | - Jana Doležalová
- Department of Physiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Palackého tř. 1, Brno, Czech Republic
| | - Helen Morrogh-Bernard
- Borneo Nature Foundation, Palangkaraya, Central Kalimantan, Indonesia
- Department of Humanities and Social Sciences, Oxford Brookes University, Oxford, UK
| | - Susan M Cheyne
- Department of Humanities and Social Sciences, Oxford Brookes University, Oxford, UK
| | - Wisnu Nurcahyo
- Department of Parasitology, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Ivona Foitová
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic.
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Frias L, Stark DJ, Salgado Lynn M, Nathan S, Goossens B, Okamoto M, MacIntosh AJJ. Molecular characterization of nodule worm in a community of Bornean primates. Ecol Evol 2019; 9:3937-3945. [PMID: 31015978 PMCID: PMC6468080 DOI: 10.1002/ece3.5022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 02/01/2019] [Accepted: 02/05/2019] [Indexed: 01/11/2023] Open
Abstract
Strongyles are commonly reported parasites in studies of primate parasite biodiversity. Among them, nodule worm species are often overlooked as a serious concern despite having been observed to cause serious disease in nonhuman primates and humans. In this study, we investigated whether strongyles found in Bornean primates are the nodule worm Oesophagostomum spp., and to what extent these parasites are shared among members of the community. To test this, we propose two hypotheses that use the parasite genetic structure to infer transmission processes within the community. In the first scenario, the absence of parasite genetic substructuring would reflect high levels of parasite transmission among primate hosts, as primates' home ranges overlap in the study area. In the second scenario, the presence of parasite substructuring would suggest cryptic diversity within the parasite genus and the existence of phylogenetic barriers to cross-species transmission. By using molecular markers, we identify strongyles infecting this primate community as O. aculeatum, the only species of nodule worm currently known to infect Asian nonhuman primates. Furthermore, the little to no genetic substructuring supports a scenario with no phylogenetic barriers to transmission and where host movements across the landscape would enable gene flow between host populations. This work shows that the parasite's high adaptability could act as a buffer against local parasite extinctions. Surveys targeting human populations living in close proximity to nonhuman primates could help clarify whether this species of nodule worm presents the zoonotic potential found in the other two species infecting African nonhuman primates.
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Affiliation(s)
| | - Danica J. Stark
- Cardiff School of BiosciencesCardiff UniversityCardiffUK
- Danau Girang Field CentreLower Kinabatangan Wildlife SanctuarySabahMalaysia
| | - Milena Salgado Lynn
- Cardiff School of BiosciencesCardiff UniversityCardiffUK
- Danau Girang Field CentreLower Kinabatangan Wildlife SanctuarySabahMalaysia
- Wildlife Health, Genetic and Forensic LaboratoryKota KinabaluMalaysia
- Sustainable Places Research InstituteCardiff UniversityCardiffUK
| | | | - Benoit Goossens
- Cardiff School of BiosciencesCardiff UniversityCardiffUK
- Danau Girang Field CentreLower Kinabatangan Wildlife SanctuarySabahMalaysia
- Sustainable Places Research InstituteCardiff UniversityCardiffUK
- Sabah Wildlife DepartmentKota KinabaluMalaysia
| | | | - Andrew J. J. MacIntosh
- Primate Research InstituteKyoto UniversityInuyamaJapan
- Institute for Tropical Biology and ConservationUniversiti Malaysia SabahKota KinabaluMalaysia
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Pafčo B, Čížková D, Kreisinger J, Hasegawa H, Vallo P, Shutt K, Todd A, Petrželková KJ, Modrý D. Metabarcoding analysis of strongylid nematode diversity in two sympatric primate species. Sci Rep 2018; 8:5933. [PMID: 29651122 PMCID: PMC5897349 DOI: 10.1038/s41598-018-24126-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 03/22/2018] [Indexed: 11/30/2022] Open
Abstract
Strongylid nematodes in large terrestrial herbivores such as great apes, equids, elephants, and humans tend to occur in complex communities. However, identification of all species within strongylid communities using traditional methods based on coproscopy or single nematode amplification and sequencing is virtually impossible. High-throughput sequencing (HTS) technologies provide opportunities to generate large amounts of sequence data and enable analyses of samples containing a mixture of DNA from multiple species/genotypes. We designed and tested an HTS approach for strain-level identification of gastrointestinal strongylids using ITS-2 metabarcoding at the MiSeq Illumina platform in samples from two free-ranging non-human primate species inhabiting the same environment, but differing significantly in their host traits and ecology. Although we observed overlapping of particular haplotypes, overall the studied primate species differed in their strongylid nematode community composition. Using HTS, we revealed hidden diversity in the strongylid nematode communities in non-human primates, more than one haplotype was found in more than 90% of samples and coinfections of more than one putative species occurred in 80% of samples. In conclusion, the HTS approach on strongylid nematodes, preferably using fecal samples, represents a time and cost-efficient way of studying strongylid communities and provides a resolution superior to traditional approaches.
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Affiliation(s)
- Barbora Pafčo
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic.
| | - Dagmar Čížková
- The Czech Academy of Sciences, Institute of Vertebrate Biology, Květná 8, Brno, 603 65, Czech Republic
| | - Jakub Kreisinger
- The Czech Academy of Sciences, Institute of Vertebrate Biology, Květná 8, Brno, 603 65, Czech Republic
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, Praha, 128 44, Czech Republic
| | - Hideo Hasegawa
- Department of Infectious Disease Control, Oita University School of Medicine, 1-1 Idaigaoka, Hasama, Yufu, Oita, 879-5593, Japan
| | - Peter Vallo
- The Czech Academy of Sciences, Institute of Vertebrate Biology, Květná 8, Brno, 603 65, Czech Republic
| | - Kathryn Shutt
- Fauna & Flora International, Pembroke St, Cambridge, CB2 3QZ, United Kingdom
| | | | - Klára J Petrželková
- The Czech Academy of Sciences, Institute of Vertebrate Biology, Květná 8, Brno, 603 65, Czech Republic
- The Czech Academy of Sciences, Institute of Parasitology, Branišovská 31, České Budějovice, 370 05, Czech Republic
| | - David Modrý
- Department of Pathology and Parasitology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
- The Czech Academy of Sciences, Institute of Parasitology, Branišovská 31, České Budějovice, 370 05, Czech Republic
- Central European Institute for Technology (CEITEC), University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
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McLennan MR, Mori H, Mahittikorn A, Prasertbun R, Hagiwara K, Huffman MA. Zoonotic Enterobacterial Pathogens Detected in Wild Chimpanzees. ECOHEALTH 2018; 15:143-147. [PMID: 29192342 DOI: 10.1007/s10393-017-1303-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/28/2017] [Accepted: 11/09/2017] [Indexed: 06/07/2023]
Abstract
Infectious diseases including those acquired through direct or indirect contact with people and livestock threaten the survival of wild great apes. Few studies have reported enterobacterial pathogens in chimpanzees. We used multiplex PCR to screen faeces of chimpanzees sharing a landscape with villagers and livestock in Bulindi, Uganda for Salmonella spp., enterohemorrhagic Escherichia coli (E. coli) and Shigella spp./enteroinvasive E. coli. All three potentially zoonotic pathogens were detected. Individual prevalence ranged between 7 and 20%, with most infections observed in mature male chimpanzees. These preliminary findings suggest detailed investigation of enterobacterial infections in people, primates and livestock in this ecosystem is warranted.
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Affiliation(s)
- Matthew R McLennan
- Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, OX3 0BP, UK.
- Bulindi Chimpanzee & Community Project, PO Box 245, Hoima, Uganda.
| | - Hirotake Mori
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Aongart Mahittikorn
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Rapeepun Prasertbun
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Katsuro Hagiwara
- Department of Pathobiology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
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McLennan MR, Hasegawa H, Bardi M, Huffman MA. Gastrointestinal parasite infections and self-medication in wild chimpanzees surviving in degraded forest fragments within an agricultural landscape mosaic in Uganda. PLoS One 2017; 12:e0180431. [PMID: 28692673 PMCID: PMC5503243 DOI: 10.1371/journal.pone.0180431] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 06/15/2017] [Indexed: 12/25/2022] Open
Abstract
Monitoring health in wild great apes is integral to their conservation and is especially important where they share habitats with humans, given the potential for zoonotic pathogen exchange. We studied the intestinal parasites of wild chimpanzees (Pan troglodytes schweinfurthii) inhabiting degraded forest fragments amid farmland and villages in Bulindi, Uganda. We first identified protozoan and helminth parasites infecting this population. Sixteen taxa were demonstrated microscopically (9 protozoa, 5 nematodes, 1 cestode, and 1 trematode). DNA sequence analysis enabled more precise identification of larval nematodes (e.g. Oesophagostomum stephanostomum, O. bifurcum, Strongyloides fuelleborni, Necator sp. Type II) and tapeworm proglottids (genus Bertiella). To better understand the ecology of infections, we used multidimensional scaling analysis to reveal general patterns of association among parasites, climate, and whole leaf swallowing-a prevalent self-medicative behaviour at Bulindi linked to control of nodular worms (Oesophagostomum spp.). Prevalence of parasites varied with climate in diverse ways. For example, Oesophagostomum sp. was detected in faeces at higher frequencies with increasing rainfall but was most clearly associated with periods of low temperature. Certain parasites occurred together within chimpanzee hosts more or less frequently than expected by chance. For example, the commensal ciliate Troglodytella abrassarti was negatively associated with Balantidium coli and Oesophagostomum sp., possibly because the latter taxa make the large intestine less suitable for T. abrassarti. Whole leaves in faeces showed independent associations with the prevalence of Oesophagostomum sp., Strongyloides sp., and hookworm by microscopic examination, and with egestion of adult O. stephanostomum by macroscopic inspection. All parasites identified to species or genus have been reported in wild chimpanzees inhabiting less-disturbed environments than Bulindi. Nevertheless, several disease-causing taxa infecting these chimpanzees are potentially transmissible between apes and humans (e.g. rhabditoid and strongyle nematodes), underscoring the importance of identifying and reducing risks of pathogen exchange in shared landscapes.
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Affiliation(s)
- Matthew R. McLennan
- Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Oxford, United Kingdom
- Bulindi Chimpanzee and Community Project, Hoima, Uganda
| | - Hideo Hasegawa
- Department of Infectious Disease Control, Faculty of Medicine, Oita University, Hasama, Yufu, Oita, Japan
- Department of Biology, Faculty of Medicine, Oita University, Hasama, Yufu, Oita, Japan
| | - Massimo Bardi
- Department of Psychology and Behavioral Neuroscience, Randolph-Macon College, Ashland, Virginia, United States of America
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Hasegawa H, Shigyo M, Yanai Y, McLennan MR, Fujita S, Makouloutou P, Tsuchida S, Ando C, Sato H, Huffman MA. Molecular features of hookworm larvae (Necator spp.) raised by coproculture from Ugandan chimpanzees and Gabonese gorillas and humans. Parasitol Int 2016; 66:12-15. [PMID: 27840196 DOI: 10.1016/j.parint.2016.11.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 10/14/2016] [Accepted: 11/09/2016] [Indexed: 11/30/2022]
Abstract
Species composition of Necator hookworms was surveyed in (i) Ugandan chimpanzees living around farms and villages at Bulindi, (ii) Gabonese gorillas under habituation in Moukalaba-Doudou National Park (MDNP), and (iii) Gabonese villagers living adjacent to MDNP. Internal transcribed spacers (ITS) of rDNA and partial cytochrome c oxidase subunit 1 (Cox1) gene of mtDNA were analyzed from larvae obtained by coproculture. Three ITS types (I, II and III) and three Cox1 haplotype groups (A, B and C) were demonstrated. ITS type I and Cox1 haplotype group A, representing Necator americanus, were demonstrated in the hookworm larvae from Gabonese gorillas and humans, but not from Ugandan chimpanzees. Type II and haplotype groups B and C, presumably representing N. gorillae, were found in larvae from Ugandan chimpanzees and Gabonese gorillas and humans. These features were overall similar with those found previously in the Central African Republic. Meanwhile, type III was proven in a larva from a Gabonese gorilla as the first demonstration from a non-human primate. Cox1 haplotypes obtained from Ugandan chimpanzees formed a subgroup within group B, presumably reflecting dispersal and diversification processes of the apes.
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Affiliation(s)
- Hideo Hasegawa
- Department of Biology, Faculty of Medicine, Oita University, Hasama, Yufu, Oita 879-5593, Japan.
| | - Miho Shigyo
- Department of Biology, Faculty of Medicine, Oita University, Hasama, Yufu, Oita 879-5593, Japan
| | - Yuka Yanai
- Department of Biology, Faculty of Medicine, Oita University, Hasama, Yufu, Oita 879-5593, Japan
| | - Matthew R McLennan
- Faculty of Humanities and Social Sciences, Anthropology Centre for Conservation, Environment and Development, Oxford Brookes University, Gipsy Lane Campus, Oxford OX3 0BP, UK
| | - Shiho Fujita
- Department of Basic Veterinary Medicine, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima 890-0065, Japan
| | - Patrice Makouloutou
- Laboratory of Parasitology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi 753-8515, Japan; Institute de Recherche en Ecologie Tropicale (IRET/CENAREST), BP 13354 Libreville, Gabon
| | - Sayaka Tsuchida
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Kyoto 606-8522, Japan
| | - Chieko Ando
- Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan; General Incorporated Association ECO-LOGIC, Oshikakubo, Fujinomiya, Shizuoka 419-0303, Japan
| | - Hiroshi Sato
- Laboratory of Parasitology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi 753-8515, Japan
| | - Michael A Huffman
- Section of Social Systems Evolution, Primate Research Institute, Kyoto University, 41-2, Kanrin, Inuyama, Aichi 484-8506, Japan
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McLennan MR, Asiimwe C. Cars kill chimpanzees: case report of a wild chimpanzee killed on a road at Bulindi, Uganda. Primates 2016; 57:377-88. [PMID: 26960418 DOI: 10.1007/s10329-016-0528-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 02/29/2016] [Indexed: 01/13/2023]
Abstract
Roads have broadly adverse impacts on wildlife, including nonhuman primates. One direct effect is mortality from collisions with vehicles. While highly undesirable, roadkills provide valuable information on the health and condition of endangered species. We present a case report of a wild chimpanzee (Pan troglodytes schweinfurthii) killed crossing a road in Bulindi, Uganda, where chimpanzees inhabit forest fragments amid farmland. Details of the collision are constructed from eyewitness accounts of pedestrians. Physical examination of the cadaver indicated good overall body condition; at 40 kg, the deceased female was heavier than usual for an adult female East African chimpanzee. No external wounds or fractures were noted. Coprological assessment demonstrated infection by several gastrointestinal parasites commonly reported in living wild chimpanzees. Histopathology revealed eosinophilic enteritis and biliary hyperplasia potentially caused by parasite infection. However, eosinophilia was not widely spread into the submucosa, while egg/cyst counts suggested low-intensity parasite infections compared to healthy female chimpanzees of similar age in nearby Budongo Forest. No behavioral indicators of ill health were noted in the deceased female in the month prior to the accident. We conclude that cause of death was acute, i.e., shock from the collision, and was probably unrelated to parasite infection or any other underlying health condition. Notably, this female had asymmetrical polythelia, and, while nursing at the time of her death, had one functioning mammary gland only. In Uganda, where primates often inhabit human-dominated landscapes, human population growth and economic development has given rise to increasing motor traffic, while road development is enabling motorists to travel at greater speeds. Thus, the danger of roads to apes and other wildlife is rising, necessitating urgent strategies to reduce risks. Installation of simple speed-bumps-common on Ugandan roads-would be effective in reducing risks to wildlife, and would also make roads safer for human pedestrians.
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Affiliation(s)
- Matthew R McLennan
- Anthropology Centre for Conservation, Environment and Development, Faculty of Humanities and Social Sciences, Oxford Brookes University, Gipsy Lane Campus, Oxford, OX3 0BP, UK.
| | - Caroline Asiimwe
- Budongo Conservation Field Station, P.O. Box 362, Masindi, Uganda
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