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Ibrahim K, Chatanga E, Mohamed NS, Ahmed A, Alasmari S, Almathen F, Nakao R, Salim B. Intra- and interspecies variation and population dynamics of Fasciola gigantica among ruminants in Sudan. Parasitol Res 2024; 123:210. [PMID: 38743097 DOI: 10.1007/s00436-024-08201-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/02/2024] [Indexed: 05/16/2024]
Abstract
Fasciola gigantica is a widespread parasite that causes neglected disease in livestock worldwide. Its high transmissibility and dispersion are attributed to its ability to infect intermediate snail hosts and adapt to various mammalian definitive hosts. This study investigated the variation and population dynamics of F. gigantica in cattle, sheep, and goats from three states in Sudan. Mitochondrial cytochrome c oxidase subunit I (COI) and NADH dehydrogenase subunit 1 (ND1) genes were sequenced successfully to examine intra and interspecific differences. ND1 exhibited higher diversity than COI, with 15 haplotypes and 10 haplotypes, respectively. Both genes had high haplotype diversity but low nucleotide diversity, with 21 and 11 polymorphic sites for ND1 and COI, respectively. Mismatch distribution analysis and neutrality tests revealed that F. gigantica from different host species was in a state of population expansion. Maximum likelihood phylogenetic trees and median networks revealed that F. gigantica in Sudan and other African countries had host-specific and country-specific lineages for both genes. The study also indicated that F. gigantica-infected small ruminants were evolutionarily distant, suggesting deep and historical interspecies adaptation.
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Affiliation(s)
- Kamal Ibrahim
- Central Veterinary Research Laboratory, Khartoum, Sudan
| | - Elisha Chatanga
- Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Sapporo, Hokkaido, 060-0818, Japan
- Department of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, P.O. Box 219, Lilongwe, Malawi
| | - Nouh S Mohamed
- Molecular Biology Unit, Sirius Training and Research Center, Khartoum, Sudan
| | - Ayman Ahmed
- Institute of Endemic Diseases, University of Khartoum, Khartoum, Sudan
| | - Saeed Alasmari
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, 1988, Kingdom of Saudi Arabia
| | - Faisal Almathen
- Department of Veterinary Public Health and Animal Husbandry, College of Veterinary Medicine, King Faisal University, Al-Hofuf, Al-Ahsa, Saudi Arabia
| | - Ryo Nakao
- Department of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, P.O. Box 219, Lilongwe, Malawi
| | - Bashir Salim
- Department of Parasitology, Faculty of Veterinary Medicine, University of Khartoum, P.O. Box 32, Khartoum North, Sudan.
- Camel Research Center, King Faisal University, Al-Hofuf, Al-Hasa, Saudi Arabia.
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Megersa B, Hussein B, Shemsu J, Kassahun R, Merera O, Moje N, Edao BM, Waktole H, Ashenafi H, Ayana D. Trematode infection in ruminants and diversity of snail hosts across three agro-ecological zones in Ethiopia. BMC Vet Res 2024; 20:197. [PMID: 38741097 DOI: 10.1186/s12917-024-04049-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024] Open
Abstract
The occurrence of trematodes among ruminants and their snail vectors is a major concern across various agro-ecological regions of Ethiopia. Trematodes pose significant threats to animals, causing considerable economic losses and impacting public health. In this study, we have investigated 784 ruminant fecal samples, and 520 abattoir samples, alongside the collection and identification of snail vectors from various agro-ecological regions. Fecal examinations revealed Fasciola, Paramphistomum and Schistosoma species infected 20.5% (95% CI: 17.6, 23.8), 11.7% (95% CI: 9.6, 14.2), and 6.3% (95% CI: 4.1, 9.1) of the animals, respectively. The overall prevalence of trematodes among ruminants was 28.8% (95% CI: 25.7, 32.1%), with 6.0% (95% CI: 4.3, 7.7) showing mixed infections. Fasciola was more prevalent in Asela (26%) compared to Batu (19%) and Hawassa (11.5%), while a higher proportion of animals in Batu were infected with Paramphistomum. Schistosoma eggs were detected only in Batu (12.5%), but not in other areas. Sheep and cattle exhibited higher infection rates with Fasciola, Paramphistoma, and Schistosoma compared to goats. Significant associations were observed between trematode infections and risk factors including agro-ecology, animal species, body condition score, and deworming practices. About 20.8% and 22.7% of the slaughtered animals harbored Fasciola and Paramphistomum flukes, respectively, with a higher prevalence in Asela and Hawassa abattoirs compared to Batu abattoir. Additionally, a total of 278 snails were collected from the study areas and identified as lymnae natalensis, lymnae trancatula, Biomphalaria pffiferi, Biomphlaria sudanica, and Bulinus globosus. In conclusion, the study highlights the widespread occurrence of trematode infections, emphasizing the need for feasible control measures to mitigate their economic and public health impacts.
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Affiliation(s)
- Bekele Megersa
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia.
| | - Bilisuma Hussein
- College of Veterinary Medicine, Hawassa University, Hawassa, Ethiopia
| | - Jemila Shemsu
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
| | - Redeat Kassahun
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
| | - Olana Merera
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
| | - Nebyou Moje
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
| | - Bedaso Mammo Edao
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
- Department of Pathobiology, University of Illinois, Champaign, USA
| | - Hika Waktole
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
| | - Hagos Ashenafi
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis, Ababa, Ethiopia
| | - Dinka Ayana
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
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Baillou A, Tomal F, Chaumeil T, Barc C, Levern Y, Sausset A, Pezier T, Schulthess J, Peltier-Pain P, Laurent F, Lacroix-Lamandé S. Characterization of intestinal mononuclear phagocyte subsets in young ruminants at homeostasis and during Cryptosporidium parvum infection. Front Immunol 2024; 15:1379798. [PMID: 38756777 PMCID: PMC11096452 DOI: 10.3389/fimmu.2024.1379798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/03/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction Cryptosporidiosis is a poorly controlled zoonosis caused by an intestinal parasite, Cryptosporidium parvum, with a high prevalence in livestock (cattle, sheep, and goats). Young animals are particularly susceptible to this infection due to the immaturity of their intestinal immune system. In a neonatal mouse model, we previously demonstrated the importance of the innate immunity and particularly of type 1 conventional dendritic cells (cDC1) among mononuclear phagocytes (MPs) in controlling the acute phase of C. parvum infection. These immune populations are well described in mice and humans, but their fine characterization in the intestine of young ruminants remained to be further explored. Methods Immune cells of the small intestinal Peyer's patches and of the distal jejunum were isolated from naive lambs and calves at different ages. This was followed by their fine characterization by flow cytometry and transcriptomic analyses (q-RT-PCR and single cell RNAseq (lamb cells)). Newborn animals were infected with C. parvum, clinical signs and parasite burden were quantified, and isolated MP cells were characterized by flow cytometry in comparison with age matched control animals. Results Here, we identified one population of macrophages and three subsets of cDC (cDC1, cDC2, and a minor cDC subset with migratory properties) in the intestine of lamb and calf by phenotypic and targeted gene expression analyses. Unsupervised single-cell transcriptomic analysis confirmed the identification of these four intestinal MP subpopulations in lamb, while highlighting a deeper diversity of cell subsets among monocytic and dendritic cells. We demonstrated a weak proportion of cDC1 in the intestine of highly susceptible newborn lambs together with an increase of these cells within the first days of life and in response to the infection. Discussion Considering cDC1 importance for efficient parasite control in the mouse model, one may speculate that the cDC1/cDC2 ratio plays also a key role for the efficient control of C. parvum in young ruminants. In this study, we established the first fine characterization of intestinal MP subsets in young lambs and calves providing new insights for comparative immunology of the intestinal MP system across species and for future investigations on host-Cryptosporidium interactions in target species.
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Affiliation(s)
- Ambre Baillou
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
- Phileo by Lesaffre, Marcq-en-Barœul, France
| | - Florian Tomal
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
| | - Thierry Chaumeil
- Unité Expérimentale (UE)1277 Plateforme d’Infectiologie Expérimentale (PFIE), INRAE Centre Val de Loire, Nouzilly, France
| | - Céline Barc
- Unité Expérimentale (UE)1277 Plateforme d’Infectiologie Expérimentale (PFIE), INRAE Centre Val de Loire, Nouzilly, France
| | - Yves Levern
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
| | - Alix Sausset
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
| | - Tiffany Pezier
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
| | | | | | - Fabrice Laurent
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
| | - Sonia Lacroix-Lamandé
- Unité Mixte de Recherches (UMR)1282 Infectiologie et Santé Publique, INRAE Centre Val de Loire, Université François Rabelais de Tours, Nouzilly, France
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Challaton KP, Akouedegni CG, Alowanou GG, Boko KC, Toklo PM, Hounzangbé-Adoté MS. Gastrointestinal anthelmintic plants used on small ruminants in Benin: Traditional use and scientific results - Review. Vet Parasitol Reg Stud Reports 2024; 50:101015. [PMID: 38644039 DOI: 10.1016/j.vprsr.2024.101015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 02/02/2024] [Accepted: 03/11/2024] [Indexed: 04/23/2024]
Abstract
In Benin, livestock breeders frequently use medicinal plants to treat gastrointestinal diseases in small ruminants. The aim of this review is to list the plants traditionally used in this context and to present the scientific findings on the efficacy of these plants. An extensive search was carried out using PubMed, Scopus, ScienceDirect, Biomed Central and Google Scholar databases to collect data, with combinations of relevant french and english keywords such as "ethnobotanical survey", "anthelmintic properties", "medicinal plants", "gastrointestinal parasites", "digestive strongyles", "Haemonchus", "Trichostrongylus", "small ruminants", "sheep", "goats" and "Benin". A total of 45 published articles met the eligibility criteria. This review listed 123 plants used by breeders to treat gastrointestinal ailments in small ruminants. The most commonly used parts are leaves and barks, and the most common forms are decoction, maceration and powder. Scientific studies have demonstrated the anthelmintic properties of 18 plants, including Zanthoxylum zanthoxyloides, Newbouldia laevis, Mitragyna inermis and Combretum glutinosum. The powders or leaf extracts of these plants showed in vivo significant reductions of over 50% in egg excretion, larval establishment, viability and fertility of gastrointestinal strongyles in small ruminants. Extracts of these plants also revealed in vitro inhibitory activity of over 50% on egg hatching, larval migration and motility of gastrointestinal strongyles. This manuscript highlights the traditional use of anthelmintic plants in small ruminants in Benin and provides scientific results supporting the efficacy of these plants.
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Affiliation(s)
- Kétomon Pierre Challaton
- Laboratoire d'Ethnopharmacologie et de Santé Animale, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Cotonou, Bénin.
| | - Coovi Guénolé Akouedegni
- Laboratoire d'Ethnopharmacologie et de Santé Animale, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Cotonou, Bénin
| | - Goué Géorcelin Alowanou
- Laboratoire d'Ethnopharmacologie et de Santé Animale, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Cotonou, Bénin; Laboratoire des Recherches Pluridisciplinaires de l'Enseignement Technique, Ecole Normale Supérieure de l'Enseignement Technique, Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques, Abomey, Bénin
| | - Kadoéito Cyrille Boko
- Unité de Recherche sur les Maladies Transmissibles du Laboratoire de Recherches en Biologie Appliquée, Ecole Polytechnique d'Abomey-Calavi, Université d'Abomey-Calavi, Cotonou, Bénin
| | - Placide Mahougnan Toklo
- Laboratoire de Pharmacognosie et des Huiles Essentielles, Facult'e des Sciences et Techniques, Université d'Abomey-Calavi, Cotonou, Benin
| | - Mawulé Sylvie Hounzangbé-Adoté
- Laboratoire d'Ethnopharmacologie et de Santé Animale, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Cotonou, Bénin
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Khan MA, Afshan K, Firasat S, Abbas M, Sargison ND, Betson M, Chaudhry U. Validation of deep amplicon sequencing of Dicrocoelium in small ruminants from Northern regions of Pakistan. PLoS One 2024; 19:e0302455. [PMID: 38683822 PMCID: PMC11057770 DOI: 10.1371/journal.pone.0302455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/03/2024] [Indexed: 05/02/2024] Open
Abstract
Dicrocoelium lancet flukes cause significant production loss in ruminant livestock. Although co-infection with multiple Dicrocoelium species within a host is common, techniques for studying the composition of these complex parasite communities are lacking. The pathogenicity, epidemiology, and therapeutic susceptibility of different helminth species vary, and little is known about the interactions that take place between co-infecting species and their hosts. Here, we describe the first applicationof metabarcoding deep amplicon sequencing method to studythe Dicrocoelium species in sheep and goats. First, rDNA ITS-2 sequences of four Dicrocoelium species (Dicrocoelium dendriticum, Dicrocoelium hospes, Dicrocoelium orientalis, and Dicrocoelium chinensis) were extracted from the NCBI public database. Phylogenetic analysis revealed separate clades of Dicrocoelium species; hence, molecular differentiation between each species is possible in co-infections. Second, 202 flukes belonging to seventeen host populations (morphologically verified as belonging to the Dicrocoelium genus) were evaluated to determine the deep amplicon sequencing read threshold of an individual fluke for each of the four species. The accuracy of the method in proportional quantification of samples collected from single hosts was further assessed. Overall, 198 (98.01%) flukes were confirmed as D. dendriticum and 1.98% produced no reads. The comparison of genetic distances between rDNA ITS-2 revealed 86% to 98% identity between the Dicrocoelium species. Phylogenetic analysis demonstrated a distinct clustering of species, apart from D. orientalis and D. chinensis, which sit very close to each other in a single large clade whereas D. hospes and D. dendriticum are separated into their own clade. In conclusion each sample was identified as D. dendriticum based on the proportion of MiSeq reads and validated the presence of this group of parasites in the Gilgit Baltistan and Khyber Pakhtunkhwa provinces of Pakistan. The metabarcoding deep amplicon sequencing technology and bioinformatics pathway have several potential applications, including species interactions during co-infections, identifying the host and geographical distribution of Dicrocoelium in livestock, drug therapy response evaluation and understanding of the emergence and spread of drug resistance.
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Affiliation(s)
- Muhammad Asim Khan
- Faculty of Biological Sciences, Department of Zoology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Kiran Afshan
- Faculty of Biological Sciences, Department of Zoology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sabika Firasat
- Faculty of Biological Sciences, Department of Zoology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Abbas
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Neil D. Sargison
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Martha Betson
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
| | - Umer Chaudhry
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, United Kingdom
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
- School of Veterinary Medicine, St. George’s University True Blue, St. George’s Grenada, Caribbean
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Jung H, Zarlenga D, Martin JC, Geldhof P, Hallsworth-Pepin K, Mitreva M. The identification of small molecule inhibitors with anthelmintic activities that target conserved proteins among ruminant gastrointestinal nematodes. mBio 2024; 15:e0009524. [PMID: 38358246 PMCID: PMC10936192 DOI: 10.1128/mbio.00095-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
Gastrointestinal nematode (GIN) infections are a major concern for the ruminant industry worldwide and result in significant production losses. Naturally occurring polyparasitism and increasing drug resistance that potentiate disease outcomes are observed among the most prevalent GINs of veterinary importance. Within the five major taxonomic clades, clade Va represents a group of GINs that predominantly affect the abomasum or small intestine of ruminants. However, the development of effective broad-spectrum anthelmintics against ruminant clade Va GINs has been challenged by a lack of comprehensive druggable genome resources. Here, we first assembled draft genomes for three clade Va species (Cooperia oncophora, Trichostrongylus colubriformis, and Ostertagia ostertagi) and compared them with closely related ruminant GINs. Genome-wide phylogenetic reconstruction showed a relationship among ruminant GINs structured by taxonomic classification. Orthogroup (OG) inference and functional enrichment analyses identified 220 clade Va-specific and Va-conserved OGs, enriched for functions related to cell cycle and cellular senescence. Further transcriptomic analysis identified 61 taxonomically and functionally conserved clade Va OGs that may function as drug targets for new broad-spectrum anthelmintics. Chemogenomic screening identified 11 compounds targeting homologs of these OGs, thus having potential anthelmintic activity. In in vitro phenotypic assays, three kinase inhibitors (digitoxigenin, K-252a, and staurosporine) exhibited broad-spectrum anthelmintic activities against clade Va GINs by obstructing the motility of exsheathed L3 (xL3) or molting of xL3 to L4. These results demonstrate valuable applications of the new ruminant GIN genomes in gaining better insights into their life cycles and offer a contemporary approach to discovering the next generation of anthelmintics.IMPORTANCEGastrointestinal nematode (GIN) infections in ruminants are caused by parasites that inhibit normal function in the digestive tract of cattle, sheep, and goats, thereby causing morbidity and mortality. Coinfection and increasing drug resistance to current therapeutic agents will continue to worsen disease outcomes and impose significant production losses on domestic livestock producers worldwide. In combination with ongoing therapeutic efforts, advancing the discovery of new drugs with novel modes of action is critical for better controlling GIN infections. The significance of this study is in assembling and characterizing new GIN genomes of Cooperia oncophora, Ostertagia ostertagi, and Trichostrongylus colubriformis for facilitating a multi-omics approach to identify novel, biologically conserved drug targets for five major GINs of veterinary importance. With this information, we were then able to demonstrate the potential of commercially available compounds as new anthelmintics.
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Affiliation(s)
- Hyeim Jung
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Dante Zarlenga
- Animal Parasitic Diseases Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, Maryland, USA
| | - John C. Martin
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Peter Geldhof
- Laboratory of Parasitology, Faculty of Veterinary Medicine, University of Ghent, Merelbeke, Belgium
| | | | - Makedonka Mitreva
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, USA
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri, USA
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Nasirian H. Hard Tick Species Parasitism Levels in Domestic Ruminants with Their Distribution and Role as Vectors: A Detailed Global Meta-analysis and Systematic Review. Acta Parasitol 2024; 69:1-105. [PMID: 37987883 DOI: 10.1007/s11686-023-00724-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 10/03/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE This comprehensive global meta-analysis reviews the parasitism levels of tick genera and species, life stages, seasonality, attachment sites, the global mean ranks of tick species parasitism rates and records, and their distribution and role as vectors. METHODS From the 418 papers identified, 390 papers were selected to become part of the study. RESULTS The genera recorded as infesting domestic ruminants were Rhipicephalus (42 species), Haemaphysalis (32 species), Hyalomma (19 species), Amblyomma (18 species), Ixodes (10 species), Dermacentor (8 species), Margaropus and Nosomma (1 species). Globally, domestic ruminants are more infested by adult females and males than by the nymphal and larval stages of the tick species. The global tick species parasitism levels at the attachment sites of domestic ruminants were, in order, tail and anal region, neck and dewlap, scrotum or udder, ear region, thigh and abdomen, and dorsal surface. CONCLUSIONS Among 131 species of eight genera of hard ticks recorded infesting domestic ruminants, 42 species had mean ranks of tick species parasitism rates up to 10%, and 37 species had mean ranks of tick species parasitism up to 10 records. Briefly, the higher the indexes of tick species parasitism rates and records, the more important their role as vectors. In addition, the majority of them are found among tick species-infested humans with nearly high ranks of tick species parasitism rates and records that double their medical, veterinary, and zoonotic importance to be the most common vectors and reservoirs of bacterial, protozoan, and viral pathogenic microorganisms, causing severe infectious diseases, and as a result, can be more dangerous to humans and domestic ruminants.
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Affiliation(s)
- Hassan Nasirian
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
- Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
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Lyngdoh D, Sharma S, Roy B, Tandon V, Zas P. Secondary Structure Analysis of Fasciola from Semi-wild Ruminants of Northeast India. Acta Parasitol 2024; 69:599-608. [PMID: 38261242 DOI: 10.1007/s11686-023-00777-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/07/2023] [Indexed: 01/24/2024]
Abstract
PURPOSE The objective of this study is to study the secondary structure analysis of Fasciola flukes from a rare mithun host from Manipur. Fascioliasis, a neglected tropical trematodiasis, is poorly studied in India and is widely believed to be predominantly caused by F. gigantica. Through this study, we want to assess the flukes from the rare semi-wild ruminants of Northeast India. This study is important as the mithun population is semi-wild and its population is declining in Manipur. METHODS Sample collected from the difficult and challenging terrain of Northeast India. The sample was collected from mithun and observed under the microscope. DNA was isolated, sequenced, and analyzed using various bioinformatics tools. The secondary structure analysis of the Internal Transcribed Spacer 2 (ITS2) region was also performed. RESULTS The secondary structure species tree corroborated the Bayesian inference and, hence, strengthened the phylogeny reconstructed. The annotated ITS2 sequence and RNA secondary of the Manipur isolate displayed the typical four-helix or four-domain model. Helix III reveals the presence of the UGGU motif with other deviations like UGG and GGU. CONCLUSION This is an in-depth analysis of the secondary structure of Fasciola species. The present study has demonstrated the usefulness of ITS2 and its secondary structures for characterizing parasites. The information on fascioliasis in the mithun's population presents itself useful with regards to their conservation strategy as their populations in both Manipur and Nagaland are dwindling.
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Affiliation(s)
- Damanbha Lyngdoh
- Department of Zoology, St. Anthony's College, Shillong, 793001, Meghalaya, India.
| | - Sunil Sharma
- Biotech Hub, St. Edmund's College, Shillong, 793003, Meghalaya, India
| | - Bishnupada Roy
- Department of Zoology, North Eastern Hill University, Shillong, 793022, Meghalaya, India
| | - Veena Tandon
- NASI Senior Scientist Platinum Jubilee Fellow, Mahanagar, Uttar Pradesh, Lucknow, 226006, India
| | - Philayung Zas
- Department of Zoology, William Carey University, Shillong, 793019, Meghalaya, India
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Paguem A, Kamtsap P, Manchang TK, Yembo J, Achukwi MD, Streit A, Renz A. Species identity and phylogeny of Paramphistomoidea Fischoeder, 1901 occurring in cattle and sheep in North Cameroon. Vet Parasitol Reg Stud Reports 2023; 45:100922. [PMID: 37783526 DOI: 10.1016/j.vprsr.2023.100922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 06/19/2023] [Accepted: 08/19/2023] [Indexed: 10/04/2023]
Abstract
Paramphistomidae and Gastrothylacidae are parasitic flatworms occurring in wild and domestic ruminants in different parts of the world especially in Asia and Africa. In Central Africa, few studies have been done using molecular techniques to resolve taxonomical groupings and understand the epizootiology of these parasites. In this study, we molecularly characterized two hundred adult flukes collected from the fore stomachs of cattle and sheep in the Adamawa region of the northern Cameroon. PCR and sequencing of the nuclear ITS-2 of the ribosomal DNA gene and a portion of the mitochondrial cox-1 locus revealed the presence of at least nine species belonging to the genera of Cotylophoron, Calicophorn, Orthocoelium and Carmyerius. In Zebu cattle, we identified Ca. microbothrium, Ca. clavula, Ca. phillerouxi, Co. cotylophorum, Co. fuelleborni, O. scoliocoelium, Car. gregarius, Car. graberi and Car. mancupatus and one yet unknown Paramphistomoidea sp, whereas in sheep, only Ca. microbothrium was found. The present study also strongly suggests cross-hybridization between the two Cotylophoron species coexisting in cattle. These results have implications for the diagnosis and control of rumen flukes in the region and point to the need for accurate species identification to understand parasite distribution and population genetics.
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Affiliation(s)
- Archile Paguem
- Department of Comparative Zoology, Institute of Evolution and Ecology, University of Tübingen, Tübingen 72076, Germany; Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, University of Buea, Cameroon.
| | - Pierre Kamtsap
- Department of Comparative Zoology, Institute of Evolution and Ecology, University of Tübingen, Tübingen 72076, Germany
| | - Tanyi Kingsley Manchang
- Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, University of Buea, Cameroon; Bangangte Multipurpose Research Station, P.O. Box 222, Bangangte, Cameroon
| | - Jeremie Yembo
- Programme Onchocercose Field Station of the University of Tübingen, P.O. Box 65, Ngaoundere, Cameroon
| | | | - Adrian Streit
- Department for Integrative Evolutionary Biology, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Alfons Renz
- Department of Comparative Zoology, Institute of Evolution and Ecology, University of Tübingen, Tübingen 72076, Germany; Programme Onchocercose Field Station of the University of Tübingen, P.O. Box 65, Ngaoundere, Cameroon
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10
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Forbes A. The future of farm animal parasitology. Vet J 2023; 300-302:106042. [PMID: 37939997 DOI: 10.1016/j.tvjl.2023.106042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 10/25/2023] [Accepted: 11/04/2023] [Indexed: 11/10/2023]
Affiliation(s)
- Andrew Forbes
- Scottish Centre for Production Animal Health and Food Safety, School of Veterinary Medicine, University of Glasgow, G61 1QH, UK.
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11
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Maurizio A, Perrucci S, Tamponi C, Scala A, Cassini R, Rinaldi L, Bosco A. Control of gastrointestinal helminths in small ruminants to prevent anthelmintic resistance: the Italian experience. Parasitology 2023; 150:1105-1118. [PMID: 37039466 PMCID: PMC10801368 DOI: 10.1017/s0031182023000343] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/12/2023]
Abstract
Helminth infections are ubiquitous in grazing ruminants and cause significant costs due to production losses. Moreover, anthelmintic resistance (AR) in parasites is now widespread throughout Europe and poses a major threat to the sustainability of modern ruminant livestock farming. Epidemiological data on the prevalence and distribution of gastrointestinal nematodes, cestodes and liver- and rumen-flukes in Italian small ruminants are outdated and fragmentary. However, anthelmintics are commonly used to control these infections and often without prior diagnosis. Compared to other European countries, few reports of AR in small ruminants against levamisole, ivermectin and benzimidazoles have been published in Italy, but recent studies suggest that this phenomenon is spreading. Increased and integrated research efforts in developing innovative approaches to control helminth infections and AR are needed and must be tailored to the peculiarities of each context in order to be effectively implemented. This manuscript provides an overview on helminth prevalence and distribution, sustainable treatment strategies and integrated control approaches in small ruminants in Italy. The implementation of targeted treatments and targeted selective treatments is discussed based on different parameters, such as fecal egg count, degree of anaemia (FAMACHA© method), milk production and body condition score. In addition, several Italian studies have also investigated the implementation of alternative strategies such as the use of different natural bioactive compounds or genetic selection for resistance and resilience to helminth infections. These concrete solutions for helminth management in small ruminant farms in the country are reported and discussed, representing a valid example for other Mediterranean countries.
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Affiliation(s)
- Anna Maurizio
- Department of Animal Medicine, Production and Health, University of Padova, Viale dell'Università, 16-35020 Legnaro, Italy
| | - Stefania Perrucci
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
| | - Claudia Tamponi
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Antonio Scala
- Department of Veterinary Medicine, Veterinary Teaching Hospital, University of Sassari, Sassari, Italy
| | - Rudi Cassini
- Department of Animal Medicine, Production and Health, University of Padova, Viale dell'Università, 16-35020 Legnaro, Italy
| | - Laura Rinaldi
- Department of Veterinary Medicine and Animal Production, CREMOPAR, University of Naples Federico II, 80137 Naples, Italy
| | - Antonio Bosco
- Department of Veterinary Medicine and Animal Production, CREMOPAR, University of Naples Federico II, 80137 Naples, Italy
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12
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Kotze AC, Hunt PW. The current status and outlook for insecticide, acaricide and anthelmintic resistances across the Australian ruminant livestock industries: assessing the threat these resistances pose to the livestock sector. Aust Vet J 2023; 101:321-333. [PMID: 37401786 DOI: 10.1111/avj.13267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/06/2023] [Accepted: 06/14/2023] [Indexed: 07/05/2023]
Abstract
The Australian ruminant livestock industries are faced with the need to control parasitic infectious diseases that can seriously impact the health of animals. However, increasing levels of resistance to insecticides, anthelmintics and acaricides are substantially reducing the ability to control some of these parasites. Here we review the current situation with regard to chemical resistances in parasites across the various sectors of the Australian ruminant livestock industries and assess the level of threat that these resistances pose to the sustainability of these sectors in the short to long terms. We also look at the extent to which testing for resistance occurs across the various industry sectors, and hence how well-informed these sectors are of the extent of chemical resistance. We examine on-farm management practices, breeding of parasite-resistant animals, and non-chemical therapeutics that may act as short to long term means to reduce the current reliance on chemicals for parasite control. Finally, we look at the balance between the prevalence and magnitude of current resistances and the availability and adoption rates of management, breeding and therapeutic alternatives in order to assess the parasite control outlook for the various industry sectors.
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Affiliation(s)
- A C Kotze
- CSIRO Agriculture and Food, Brisbane, Queensland, Australia
| | - P W Hunt
- CSIRO Agriculture and Food, Armidale, New South Wales, Australia
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Iqbal Z, Kayani AR, Akhter A, Qayyum M. Prevalence and Distribution of Hard Ticks and Their Associated Risk Factors in Sheep and Goats from Four Agro-Climatic Zones of Khyber Pakhtunkhwa (KPK), Pakistan. Int J Environ Res Public Health 2022; 19:11759. [PMID: 36142032 PMCID: PMC9517282 DOI: 10.3390/ijerph191811759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/12/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Hard ticks are blood-sucking ectoparasites infesting all types of domestic ruminants throughout the world and serve as vectors in the dissemination of a wide variety of pathogens. Sheep and goat farming is a vital economic source for resource-poor farming communities in the Khyber Pakhtunkhwa (KPK) province of Pakistan. Aim: The aim of present study is to study the epidemiological profile of ticks in various agro-climatic zones of KPK. Materials and Methods: A total of 1500 (882 sheep and 618 goats) of all age groups and sexes were examined for the presence of ticks belonging to six districts in four agro-climatic zones of KPK province, Pakistan. Non-probability sampling was undertaken based on animal hosts' selection, collection of hard ticks, and epidemiological parameters. Ticks collected from sheep and goats were identified phenotypically using standard keys. Results: The results revealed that Rhipicephalus microplus (36.2%) was the predominant tick species followed by Hyalomma anatolicum (25.2%), Hyalomma trancatum (18.1%), Hyalomma aegyptium (11.3%), Hyalomma asiaticum (6.9%), and Haemephysalis bispinosa (2.4%). Different epidemiological parameters showed that weather, humidity, and host age negatively affect (p < 0.05) tick load while temperatures (Minimum and Maximum), sunshine (hrs), and precipitation positively affected (p < 0.05) tick load. Host sex only showed a positive association with tick load (p > 0.05). The highest value of tick diversity index (H) 0.36748 was noted for Hyalomma anatolicum as this tick species was commonly distributed in three agro-climatic zones except in the Suleiman Piedmont zone, while Haemaphysalis bispinosa has the lowest diversity index (0.0334) as it was only found in the Central Valley Plains zone of KPK. The Shannon diversity index of tick diversity was highest at Barikot while the lowest index value was at Kabal (2.407). Similarly, a higher Simpson's diversity index was at Barikot (0.9554) and the lowest hard index was noted at Takht bai (2.874). The dominance index showed that the tick species were more dominant at Takht bai (0.1251), while the lowest dominance was at Barikot (0.04465). Conclusions: It has been concluded that tick diversity and distribution, abundance, reproduction, development, and survival depend on prevailing climatic conditions. The present study would not only help to identify the tick species but also facilitate in devising effective control measures to minimize the transmission pathogens in sheep and goats being reared in the various agro-climatic zones of KPK province, Pakistan.
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Hoste H, Meza-OCampos G, Marchand S, Sotiraki S, Sarasti K, Blomstrand BM, Williams AR, Thamsborg SM, Athanasiadou S, Enemark HL, Torres Acosta JF, Mancilla-Montelongo G, Castro CS, Costa-Junior LM, Louvandini H, Sousa DM, Salminen JP, Karonen M, Engstrom M, Charlier J, Niderkorn V, Morgan ER. Use of agro-industrial by-products containing tannins for the integrated control of gastrointestinal nematodes in ruminants. Parasite 2022; 29:10. [PMID: 35225785 PMCID: PMC8884022 DOI: 10.1051/parasite/2022010] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/26/2021] [Indexed: 01/19/2023] Open
Abstract
Previous studies have illustrated that different bioactive legume fodders containing condensed tannins might represent one of the options for integrated sustainable control of gastrointestinal nematodes (GIN) in ruminants, which may help address the worldwide development of resistance to synthetic anthelmintics. More recently, impetus has been given to assess the potential antiparasitic activity of less conventional resources, represented by different agro-industrial by-products (AIBPs). This review presents in vitro and in vivo results obtained with a range of tannin-containing AIBPs of various geographical and botanical origins, namely AIBP of nuts, temperate and tropical barks, carob, coffee and cocoa. They tend to confirm the “proof of concept” for their antiparasitic effects and also for other aspects of ruminant production in an agro-ecological context. Socio-economic aspects of the exploitation of such non-conventional resources are also discussed as potential models of the circular economy, by using waste. The different modes of use of these resources are presented in this review, as well as strengths, weaknesses, opportunities, and threats (SWOT) analyses to illustrate the advantages and limitations of on-farm use.
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Affiliation(s)
- Hervé Hoste
- Université de Toulouse, UMR 1225 IHAP INRAE/ENVT 31076 Toulouse France
- Corresponding author:
| | | | - Sarah Marchand
- Université de Toulouse, UMR 1225 IHAP INRAE/ENVT 31076 Toulouse France
| | | | | | | | | | | | | | | | - Juan Felipe Torres Acosta
- CONACYT-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán Carretera Mérida-Xmatkuil km 15.5 Mérida Yucatán 97000 México
| | - Gabriella Mancilla-Montelongo
- CONACYT-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán Carretera Mérida-Xmatkuil km 15.5 Mérida Yucatán 97000 México
| | - Carlos Sandoval Castro
- CONACYT-Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán Carretera Mérida-Xmatkuil km 15.5 Mérida Yucatán 97000 México
| | - Livio M. Costa-Junior
- Laboratório de Controle de Parasitos, Centro de Ciências Biológicas e da Saúde, Departamento de Patologia, Universidade Federal do Maranhão, São Luis Maranhão MA 65080-805 Brazil
| | - Helder Louvandini
- Laboratório de Nutrição Animal, Centro de Energia Nuclear na Agricultura, Universidade de São Paulo 13400-970 Piracicaba São Paulo Brazil
| | - Dauana Mesquita Sousa
- Laboratório de Controle de Parasitos, Centro de Ciências Biológicas e da Saúde, Departamento de Patologia, Universidade Federal do Maranhão, São Luis Maranhão MA 65080-805 Brazil
| | | | - Maarit Karonen
- Natural Chemistry Research Group, University of Turku 20014 Turku Finland
| | - Marika Engstrom
- Natural Chemistry Research Group, University of Turku 20014 Turku Finland
| | | | - Vincent Niderkorn
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores 63122 Saint-Genes Champanelle France
| | - Eric R. Morgan
- School of Biological Sciences, Queens University, Belfast BT9 5DL Northern Ireland United Kingdom
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15
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Moroni B, Angelone S, Pérez JM, Molinar Min AR, Pasquetti M, Tizzani P, López-Olvera JR, Valldeperes M, Granados JE, Lavín S, Mentaberre G, Camacho-Sillero L, Martínez-Carrasco C, Oleaga A, Candela M, Meneguz PG, Rossi L. Sarcoptic mange in wild ruminants in Spain: solving the epidemiological enigma using microsatellite markers. Parasit Vectors 2021; 14:171. [PMID: 33743796 PMCID: PMC7981868 DOI: 10.1186/s13071-021-04673-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/05/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND In Spain, sarcoptic mange was first described in native wildlife in 1987 in Cazorla Natural Park, causing the death of nearly 95% of the local native population of Iberian ibex (Capra pyrenaica). Since then, additional outbreaks have been identified in several populations of ibex and other wild ungulate species throughout the country. Although the first epizootic outbreak in wildlife was attributed to the introduction of an infected herd of domestic goats, the origin and the cause of its persistence remain unclear. The main aims of this study are to understand (i) the number of Sarcoptes scabiei "strains" circulating in wild ruminant populations in Spain, and (ii) the molecular epidemiological relationships between S. scabiei and its hosts. METHODS Ten Sarcoptes microsatellite markers were used to characterize the genetic structure of 266 mites obtained from skin scrapings of 121 mangy wild ruminants between 2011 and 2019 from 11 areas in Spain. RESULTS Seventy-three different alleles and 37 private alleles were detected. The results of this study show the existence of three genetic strains of S. scabiei in the wild ruminant populations investigated. While two genetic clusters of S. scabiei were host- and geography-related, one cluster included multi-host mites deriving from geographically distant populations. CONCLUSIONS The molecular epidemiological study of S. scabiei in wild ruminants in Spain indicates that the spreading and persistence of the parasite may be conditioned by host species community composition and the permissiveness of each host population/community to the circulation of individual "strains," among other factors. Wildlife-livestock interactions and the role of human-driven introduction or trade of wild and domestic animals should be better investigated to prevent further spread of sarcoptic mange in as yet unaffected natural areas of the Iberian Peninsula.
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Affiliation(s)
- Barbara Moroni
- Department of Veterinary Science, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Samer Angelone
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Jesús M. Pérez
- Department of Animal and Plant Biology, and Ecology, University of Jaén, Campus Las Lagunillas, Jaén, Spain
- Wildlife Ecology & Health Group (WE&H), and Departament de Medicina I Cirurgia Animals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Anna Rita Molinar Min
- Department of Veterinary Science, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Mario Pasquetti
- Department of Veterinary Science, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Paolo Tizzani
- Department of Veterinary Science, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Jorge Ramón López-Olvera
- Wildlife Ecology & Health Group (WE&H), and Departament de Medicina I Cirurgia Animals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Marta Valldeperes
- Wildlife Ecology & Health Group (WE&H), and Departament de Medicina I Cirurgia Animals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - José Enrique Granados
- Wildlife Ecology & Health Group (WE&H), and Parque Nacional Y Parque Natural Sierra Nevada, Granada, Spain
| | - Santiago Lavín
- Wildlife Ecology & Health Group (WE&H), and Departament de Medicina I Cirurgia Animals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Gregorio Mentaberre
- Wildlife Ecology & Health Group (WE&H), and Departament de Ciència Animal, Escola Tècnica Superior D’Enginyeria Agraria, Universitat de Lleida, Lleida, Spain
| | - Leonor Camacho-Sillero
- Programa Vigilancia Epidemiológica Fauna Silvestre, Consejería Agricultura, Ganadería, Pesca y Desarrollo Sostenible, Junta de Andalucía, Málaga, Spain
| | - Carlos Martínez-Carrasco
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Alvaro Oleaga
- S.E.R.P.A., Sociedad de Servicios del Principado de Asturias S.A., Gijón, Spain
| | - Mónica Candela
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Pier Giuseppe Meneguz
- Department of Veterinary Science, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Luca Rossi
- Department of Veterinary Science, University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy
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Apanaskevich DA, Barker SC. Dermacentor kamshadalus (Acari: Ixodidae), a Tick of Mountain Goats and Sheep in Western United States, Canada, and Russia, Is a Valid Species. J Med Entomol 2021; 58:499-501. [PMID: 32935844 DOI: 10.1093/jme/tjaa190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Dmitry A Apanaskevich
- United States National Tick Collection, The James H. Oliver, Jr. Institute for Coastal Plain Science, Georgia Southern University, Statesboro, GA
- Department of Biology, Georgia Southern University, Statesboro, GA
| | - Stephen C Barker
- Department of Parasitology, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
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Eggert LS, Berkman LK, Budd K, Keller BJ, Hildreth AM, Millspaugh JJ. Genetic analyses of the parasitic nematode, Parelaphostrongylus tenuis, in Missouri and Kentucky reveal unexpected levels of diversity and population differentiation. Parasitology 2021; 148:31-41. [PMID: 33054876 PMCID: PMC11010146 DOI: 10.1017/s0031182020001912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 11/07/2022]
Abstract
Wildlife translocations, which involve the introduction of naive hosts into new environments with novel pathogens, invariably pose an increased risk of disease. The meningeal worm Parelaphostrongylus tenuis is a nematode parasite of the white-tailed deer (Odocoileus virginianus), which serves as its primary host and rarely suffers adverse effects from infection. Attempts to restore elk (Cervus canadensis) to the eastern US have been hampered by disease caused by this parasite. Using DNA sequence data from mitochondrial and nuclear genes, we examined the hypothesis that elk translocated within the eastern US could be exposed to novel genetic variants of P. tenuis by detailing the genetic structure among P. tenuis taken from white-tailed deer and elk at a source (Kentucky) and a release site (Missouri). We found high levels of diversity at both mitochondrial and nuclear DNA in Missouri and Kentucky and a high level of differentiation between states. Our results highlight the importance of considering the potential for increased disease risk from exposure to novel strains of parasites in the decision-making process of a reintroduction or restoration.
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Affiliation(s)
- L. S. Eggert
- Division of Biological Sciences, University of Missouri, 226 Tucker Hall, Columbia, MO65211, USA
| | - L. K. Berkman
- Missouri Department of Conservation, Central Regional Office and Conservation Research Center, 3500 E. Gans Rd., Columbia, MO65201, USA
| | - K. Budd
- Division of Biological Sciences, University of Missouri, 226 Tucker Hall, Columbia, MO65211, USA
| | - B. J. Keller
- Missouri Department of Conservation, Central Regional Office and Conservation Research Center, 3500 E. Gans Rd., Columbia, MO65201, USA
- Minnesota Department of Natural Resources, 500 Lafayette Rd., St. Paul, MN50575, USA
| | - A. M. Hildreth
- Missouri Department of Conservation, Central Regional Office and Conservation Research Center, 3500 E. Gans Rd., Columbia, MO65201, USA
| | - J. J. Millspaugh
- Wildlife Biology Program, University of Montana, 32 Campus Drive, Missoula, MT59812, USA
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Soosaraei M, Fakhar M, Teshnizi SH, Emameh RZ, Hezarjaribi HZ, Asfaram S, Faridnia R, Kalani H. Status of fasciolosis among domestic ruminants in Iran based on abattoir data: a systematic review and meta-analysis. Ann Parasitol 2020; 66:77–86. [PMID: 32198998 DOI: 10.17420/ap6601.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fasciolosis is considered as an ongoing neglected zoonotic disease in tropical regions of the world, relating to notable financial and public health issues. The current systematic review and meta-analysis was planned to determine the status of fasciolosis among domestic ruminants, including cattle, buffalo, goat, and sheep at the industrial slaughterhouses in Iran, between the years 2000 and 2016. Eight databases, four English and four Persian, were searched. Our findings demonstrated that 2.6% of all inspected livers of slaughtered ruminants were infected with Fasciola spp. during 2000–2016. The mean prevalence of fasciolosis for cattle, buffalo, goat, and sheep was 21%, 4.2%, 2%, and 2.4%, respectively. Additionally, most studies were performed on cattle 25 (39.6%), sheep 24 (38 %), and goat 12 (19%), respectively, and just 2 (3.1%) studies were performed on buffalo. The prevalence of animal fasciolosis has significantly decreased among domestic ruminants in Iran except for cattle. In addition, the prevalence of this disease in Northern and Western regions of the country has remained at hypo-endemic level. The results present updated gathered information on the epidemiology of fasciolosis in domestic ruminants in Iran, and will expand the screening strategies to improve health and reduce economic impacts among farm animals.
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Affiliation(s)
- Masoud Soosaraei
- Student Research Committee, Mazandaran University of Medical Sciences; Km 18, Farah Abad Road, P.O Box: 484751-9197, Sari, Iran
| | - Mahdi Fakhar
- Department of Parasitology, Toxoplasmosis Research Centre, School of Medicine, Molecular and Cell Biology Research Centre, Mazandaran University of Medical Sciences; Km 18, Farah-Abad Road, P.O Box: 48475191971, Sari, Iran
| | - Saeed H. Teshnizi
- Infectious and Tropical Diseases Research Centre, Hormozgan University of Medical Sciences; Shahid Chamran Boulevard, P.O Box: 7916613885, Bandar Abbas, Iran
| | - Reza Z. Emameh
- Department of Energy and Environmental Biotechnology, Division of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB); Shahrak-e Pajoohesh, km 15, Tehran - Karaj Highway, P.O. Box: 14965/161, Tehran, Iran
| | - Hajar Z. Hezarjaribi
- Department of Parasitology, Toxoplasmosis Research Centre, School of Medicine, Molecular and Cell Biology Research Centre, Mazandaran University of Medical Sciences; Km 18, Farah-Abad Road, P.O Box: 48475191971, Sari, Iran
| | - Shabnam Asfaram
- Student Research Committee, Mazandaran University of Medical Sciences; Km 18, Farah Abad Road, P.O Box: 484751-9197, Sari, Iran
| | - Roghiyeh Faridnia
- Student Research Committee, Mazandaran University of Medical Sciences; Km 18, Farah Abad Road, P.O Box: 484751-9197, Sari, Iran
| | - Hamed Kalani
- Infectious Diseases Research Centre, Golestan University of Medical Sciences; Shast Kolah Road, P.O Box: 4934174515, Gorgan, Iran
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Rodrigues CMF, Garcia HA, Rodrigues AC, Pereira DL, Pereira CL, Viola LB, Neves L, Camargo EP, Gibson W, Teixeira MMG. Expanding our knowledge on African trypanosomes of the subgenus Pycnomonas: A novel Trypanosoma suis-like in tsetse flies, livestock and wild ruminants sympatric with Trypanosoma suis in Mozambique. Infect Genet Evol 2019; 78:104143. [PMID: 31837483 DOI: 10.1016/j.meegid.2019.104143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/26/2022]
Abstract
Among the subgenera of African tsetse-transmitted trypanosomes pathogenic to livestock, the least known is the subgenus Pycnomonas, which contains a single species, Trypanosoma suis (TSU), a pathogen of domestic pigs first reported in 1905 and recently rediscovered in Tanzania and Mozambique. Analysis by Fluorescent Fragment Length Barcoding (FFLB) revealed an infection rate of 20.3% (108 out of 530 tsetse flies) in a recent study in the Gorongosa and Niassa wildlife reserves in Mozambique, and demonstrated two groups of Pycnomonas trypanosomes: one (14.1%, 75 flies) showing an FFLB profile identical to the reference TSU from Tanzania, and the other (6.2%, 33 flies) differing slightly from reference TSU and designated Trypanosoma suis-like (TSU-L). Phylogenetic analyses tightly clustered TSU and TSU-L from Mozambique with TSU from Tanzania forming the clade Pycnomonas positioned between the subgenera Trypanozoon and Nannomonas. Our preliminarily exploration of host ranges of Pycnomonas trypanosomes revealed TSU exclusively in warthogs while TSU-L was identified, for the first time for a member of the subgenus Pycnomonas, in ruminants (antelopes, Cape buffalo, and in domestic cattle and goats). The preferential blood meal sources of tsetse flies harbouring TSU and TSU-L were wild suids, and most of these flies concomitantly harboured the porcine trypanosomes T. simiae, T. simiae Tsavo, and T. godfreyi. Therefore, our findings support the link of TSU with suids while TSU-L remains to be comprehensively investigated in these hosts. Our results greatly expand our knowledge of the diversity, hosts, vectors, and epidemiology of Pycnomonas trypanosomes. Due to shortcomings of available molecular diagnostic methods, a relevant cohort of trypanosomes transmitted by tsetse flies to ungulates, especially suids, has been neglected or most likely misidentified. The method employed in the present study enables an accurate discrimination of trypanosome species and genotypes and, hence, a re-evaluation of the "lost" subgenus Pycnomonas and of porcine trypanosomes in general, the most neglected group of African trypanosomes pathogenic to ungulates.
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Affiliation(s)
- Carla M F Rodrigues
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, Brazil; INCT-EpiAmO - Instituto Nacional de Epidemiologia na Amazônia Ocidental, Brazil
| | - Herakles A Garcia
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | - Adriana C Rodrigues
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, Brazil
| | | | - Carlos Lopes Pereira
- National Administration of Conservation Areas (ANAC), Ministry of Land, Environment and Rural Development, Maputo, Mozambique
| | | | - Luis Neves
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, South Africa; Centro de Biotecnologia, Universidade Eduardo Mondlane, Maputo, Mozambique
| | - Erney P Camargo
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, Brazil; INCT-EpiAmO - Instituto Nacional de Epidemiologia na Amazônia Ocidental, Brazil
| | - Wendy Gibson
- School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK
| | - Marta M G Teixeira
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, Brazil; INCT-EpiAmO - Instituto Nacional de Epidemiologia na Amazônia Ocidental, Brazil.
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Saleem MZ, Akhtar R, Aslam A, Rashid MI. Histopathological Investigation of Skin and Hides Damage of Small and Large Ruminants due to Naturally Infested Ticks. Trop Biomed 2019; 36:1081-1086. [PMID: 33597477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ticks are important ectoparasites which transmit many disease pathogen to animals; these are labelled tick borne diseases (TBD). Tick induced damage to skin and hides has not received attention. Skin and hides are important for the leather product industry, particularly in Pakistan. Due to economic importance and financial loss by ticks in leather industry, the present study was designed to investigate skin and hides damage due to ticks at microscopic level. Naturally tick infested tissue samples of hides and skin were collected from slaughter houses. Primary lesions at tick feeding sites showed epidermal edema with adjacent dermal edema. Histopathological examination revealed degeneration of epidermal layer down to the basal layer. Epidermal and sub dermal layers often displayed focal necrosis infiltrated with neutrophils and mononuclear cells at tick bite sites. Hyperplasia of keratinocytes was also seen at sites of ruptured epidermis. Quality of leather depends upon the grain (Outer) surface skin/hides. Ticks infestation damages the outer surface, due to bites, inflammatory responses, and secondary bacterial infections that often become established at feeding sites. Control of ticks should be given consideration to reduce infestation induced losses in the leather industry in Pakistan.
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Affiliation(s)
- M Z Saleem
- Department of Pathology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - R Akhtar
- Department of Pathology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - A Aslam
- Department of Pathology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - M I Rashid
- Department of Parasitology, University of Veterinary and Animal Sciences, Lahore, Pakistan
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Oleaga A, Rey O, Polack B, Grech-Angelini S, Quilichini Y, Pérez-Sánchez R, Boireau P, Mulero S, Brunet A, Rognon A, Vallée I, Kincaid-Smith J, Allienne JF, Boissier J. Epidemiological surveillance of schistosomiasis outbreak in Corsica (France): Are animal reservoir hosts implicated in local transmission? PLoS Negl Trop Dis 2019; 13:e0007543. [PMID: 31233502 PMCID: PMC6611637 DOI: 10.1371/journal.pntd.0007543] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 07/05/2019] [Accepted: 06/11/2019] [Indexed: 12/02/2022] Open
Abstract
Environmental and anthropogenic changes are expected to promote emergence and spread of pathogens worldwide. Since 2013, human urogenital schistosomiasis is established in Corsica island (France). Schistosomiasis is a parasitic disease affecting both humans and animals. The parasite involved in the Corsican outbreak is a hybrid form between Schistosoma haematobium, a human parasite, and Schistosoma bovis, a livestock parasite. S. bovis has been detected in Corsican livestock few decades ago raising the questions whether hybridization occurred in Corsica and if animals could behave as a reservoir for the recently established parasite lineage. The latter hypothesis has huge epidemiological outcomes since the emergence of a zoonotic lineage of schistosomes would be considerably harder to control and eradicate the disease locally and definitively needs to be verified. In this study we combined a sero-epidemiological survey on ruminants and a rodent trapping campaign to check whether schistosomes could shift on vertebrate hosts other than humans. A total of 3,519 domesticated animals (1,147 cattle; 671 goats and 1,701 sheep) from 160 farms established in 14 municipalities were sampled. From these 3,519 screened animals, 17 were found to be serologically positive but were ultimately considered as false positive after complementary analyses. Additionally, our 7-day extensive rodent trapping (i.e. 1,949 traps placed) resulted in the capture of a total of 34 rats (Rattus rattus) and 4 mice (Mus musculus). Despite the low number of rodents captured, molecular diagnostic tests showed that two of them have been found to be infected by schistosomes. Given the low abundance of rodents and the low parasitic prevalence and intensity among rodents, it is unlikely that neither rats nor ruminants play a significant role in the maintenance of schistosomiasis outbreak in Corsica. Finally, the most likely hypothesis is that local people initially infected in 2013 re-contaminated the river during subsequent summers, however we cannot definitively rule out the possibility of an animal species acting as reservoir host. There is an increasing interest on the effect of global changes on the transmission of infectious diseases. Both environmental and anthropogenic changes are expected to promote outbreaks and spread of pathogens. In particular, tropical infectious diseases are expected to move towards more temperate latitudes. Until 2013, urogenital schistosomiasis was restricted to tropical and sub-tropical areas. In summer 2013, a schistosomiasis outbreak has emerged in Corsica (France) with more than 100 cases. Corsica is a French Mediterranean island, which is very popular for tourists from throughout Europe due to the natural beauty of the environment. Surprisingly, in summer 2015 and 2016, the contamination has resumed, and schistosomiasis has been classified in the list of French notifiable infectious disease. In this context it has been hypothesised that reservoir vertebrate hosts, either human and/or animal are at the origin of the maintenance of the local transmission. This paper shows that ruminants (cow, sheep and goats) should not play a role of reservoir host but we found that rodents living in the vicinity of the transmission sites have been infected by the parasite. Considering the low abundance of rodents and the low parasitic prevalence/intensity among rodents, it is unlikely that rats play a significant role in the maintenance of schistosomiasis outbreak in Corsica and that other animals or human could maintain the parasite locally.
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Affiliation(s)
- Ana Oleaga
- Parasitology Laboratory, Institute of Natural Resources and Agrobiology (IRNASA, CSIC). Cordel de Merinas, Salamanca, Spain
| | - Olivier Rey
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan France
| | - Bruno Polack
- UMR BIPAR, Ecole Nationale Vétérinaire d’Alfort, ANSES, INRA, Université Paris-Est, Maisons-Alfort, France
| | | | - Yann Quilichini
- UMR SPE 6134, CNRS-Université de Corse Campus Grimaldi Bât 018, Université de Corse, Corte, France
| | - Ricardo Pérez-Sánchez
- Parasitology Laboratory, Institute of Natural Resources and Agrobiology (IRNASA, CSIC). Cordel de Merinas, Salamanca, Spain
| | - Pascal Boireau
- UMR BIPAR, Anses, Ecole Nationale Vétérinaire d'Alfort, INRA, University Paris-Est, Animal Health Laboratory, Maisons-Alfort, France
| | - Stephen Mulero
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan France
| | - Aimé Brunet
- UMR SPE 6134, CNRS-Université de Corse Campus Grimaldi Bât 018, Université de Corse, Corte, France
| | - Anne Rognon
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan France
| | - Isabelle Vallée
- UMR BIPAR, Anses, Ecole Nationale Vétérinaire d'Alfort, INRA, University Paris-Est, Animal Health Laboratory, Maisons-Alfort, France
| | - Julien Kincaid-Smith
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan France
| | | | - Jérôme Boissier
- IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan France
- * E-mail:
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Nosal P, Kowal J, Węglarz A, Wyrobisz-Papiewska A. The occurrence and diversity of flies (Diptera) related to ruminant farming in southern Poland. Ann Parasitol 2019; 65:357–363. [PMID: 32191982 DOI: 10.17420/ap6504.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The aim of the study was to determine the biodiversity of flies (Diptera) occurring in livestock buildings and in their direct proximity, in various systems of ruminants rearing. Flies were collected by net sweeping during the summer, in two cowsheds (one large-scale, and one traditional farm), and one specialist sheepfold, located in the Lesser Poland region of Poland. The insects were captured – both inside and outside the premises – three times (at 10:00, 12:00 and 14:00) on selected warm and sunny days of June, July and September, when animals were assumed to be the most harassed. A total of 18365 flies belonging to 13 families were obtained. The largest relative abundance of Diptera were from the Drosophilidae family (61.4%), and dominating Muscidae species – Musca domestica L., 1758 (19.2%) and Stomoxys calcitrans (L., 1758) (5.7%). More than half (55.5%) of all flies were captured in the morning, and their vast majority not inside a livestock building (28.2%), but in its close proximity (71.8%). This was particularly true of the large-scale cattle farm. The smallest number of insects, although with the highest biodiversity, were collected at the sheepfold. Regardless of their particular animal preferences, the insect species found were commonly occurring in different livestock sectors.
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Affiliation(s)
- Paweł Nosal
- Department of Environmental Zoology, Institute of Animal Sciences, University of Agriculture in Krakow, Mickiewicza av. 24/28, 30-059 Krakow, Poland
| | - Jerzy Kowal
- Department of Environmental Zoology, Institute of Animal Sciences, University of Agriculture in Krakow, Mickiewicza av. 24/28, 30-059 Krakow, Poland
| | - Andrzej Węglarz
- Department of Cattle Breeding, Institute of Animal Sciences, University of Agriculture in Krakow, Mickiewicza av. 24/28, 30-059 Krakow, Poland
| | - Anna Wyrobisz-Papiewska
- Department of Environmental Zoology, Institute of Animal Sciences, University of Agriculture in Krakow, Mickiewicza av. 24/28, 30-059 Krakow, Poland
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Movsesyan SO, Nikoghosian MA, Petrosian RA, Voronin MV, Kuznetsov DN. Species diversity of nematodes in domestic and wild ruminants of Armenia. Ann Parasitol 2019; 65:113-120. [PMID: 31375024 DOI: 10.17420/ap6502.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The review provides data on species composition of nematode parasites of cattle, sheep, goats and wild ruminants (Ovis orientalis gmelini, Capreolus capreolus, Capra aegagrus aegagrus) of Armenia. Six species of lung nematodes and 22 species of gastrointestinal ones have been registered in ruminants of Armenia. Five of the species listed in the review (Protostrongylus davtiani, Protostrongylus muraschkinzewi, Nematodirus davtiani, Trichostrongylus andreevi, Trichostrongylus skrjabini) have been first identified in Armenia. The ruminant host species most studied for this territory is a domestic sheep. Data on nematodes of goats and wild ruminants are limited to sporadic reports. Data on nematodes of cattle are limited to the only one species – Neoascaris vitulorum. Most of the nematode species found in Armenia are common for all ruminant host species living here and noted as widespread all over the world. Eight species of nematodes detected in ruminants of Armenia able to infect humans. The taxonomy of some rare species of nematodes reported from ruminants in Armenia is not entirely clear and should be re-evaluated basing on thorough studies.
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Affiliation(s)
- Sergey O Movsesyan
- Center of Parasitology, A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky pr., 33, Moscow, 119071, Russia
- Institute of Zoology, Scientific Center of Zoology and Hydroecology NAS RA, P. Sevak 7, Yerevan, 0014, Armenia
| | - Manya A Nikoghosian
- Institute of Zoology, Scientific Center of Zoology and Hydroecology NAS RA, P. Sevak 7, Yerevan, 0014, Armenia
| | - Rosa A Petrosian
- Institute of Zoology, Scientific Center of Zoology and Hydroecology NAS RA, P. Sevak 7, Yerevan, 0014, Armenia
| | - Mikhail V Voronin
- Center of Parasitology, A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky pr., 33, Moscow, 119071, Russia
| | - Dmitry N Kuznetsov
- Center of Parasitology, A.N. Severtsov Institute of Ecology and Evolution RAS, Leninsky pr., 33, Moscow, 119071, Russia
- All-Russian Scientific Research Institute of Fundamental and Applied Parasitology of Animals and Plants named after K.I. Skryabin, Bolshaya Cheremushkinskaya str., 28, Moscow, 117218, Russia
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Asmare K, Sibhat B, Haile A, Sheferaw D, Aragaw K, Abera M, Abebe R, Wieland B. Lungworm infection in small ruminants in Ethiopia: Systematic review and meta-analysis. Vet Parasitol Reg Stud Reports 2018; 14:63-70. [PMID: 31014739 DOI: 10.1016/j.vprsr.2018.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/13/2018] [Accepted: 08/21/2018] [Indexed: 11/17/2022]
Abstract
Lungworms are important parasitic nematodes of small ruminants that colonize the lower respiratory tract and cause high morbidity and economic loss throughout the world. This systematic review was conducted with the aim of estimating the pooled prevalence of lungworm infection in small ruminants in Ethiopia. Besides, it examines the predictors thought to be responsible for heterogeneity noted between the reports. The search databases used were PubMed, CAB direct, AJOL and Web of science. Eligible studies were selected based on predefined inclusion and exclusion criteria. Thirty two studies published between 2000 and 2016 were found eligible and data were generated on 14,257 small ruminants (12,310 sheep and 1947 goats). Predictors including the study area, type of small ruminants affected, parasitic species involved, a diagnostic test used, study design, management systems, breed, agroecology, and year article published were used as milestone of data extraction. The statistical tool employed were meta-analysis, univariable and multivariable meta-regression and Egger's and begg's statistics for sensitivity analysis. Accordingly, the estimated pooled prevalence of lung worm infection in small ruminants was 40.8% (95% CI: 36.1, 45.6) with a very high heterogeneity between the study reports (I2 = 96.5%). However, diagnostic test used and administrative States were the only two predictors identified to explain 15.5% of the explainable heterogeneity (R2 = 0.1545, tau2 unexplained = 0.6032, tau2 total = 0.7135) noted between studies. The reviewed studies showed that three genera of lungworms, namely Dictyocaulus filaria, Mullerius capillaris and Protostrogylus rufescens were prevalent both in sheep and goats in Ethiopia. Mixed infection with two or three species was reported in 4.4 to 48.6% of the total infected animals. Indeed this review is informative and provides a better picture on lungworm infection in Ethiopia; however, it is not exhaustively detailed as there was lack of clear data on the role of some important factors like age, flock size, management system and seasonal variation on lungworm infection. Thus, thorough epidemiological studies including all seasons are required for formulation of meaning full control strategies.
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Affiliation(s)
- Kassahun Asmare
- Faculty of Veterinary Medicine, Hawassa University, P.O. Box 005, Hawassa, Ethiopia
| | - Berhanu Sibhat
- College of Veterinary Medicine, Haramaya University, P.O. Box 138, Dire Dawa, Ethiopia
| | - Aynalem Haile
- International Center for Agricultural Research in the Dry Areas (ICARDA), Research Platform, Sub-Saharan Africa Regional Program, P.O. Box 5689, Addis Ababa, Ethiopia
| | - Desie Sheferaw
- Faculty of Veterinary Medicine, Hawassa University, P.O. Box 005, Hawassa, Ethiopia
| | - Kassaye Aragaw
- Faculty of Veterinary Medicine, Hawassa University, P.O. Box 005, Hawassa, Ethiopia
| | - Mesele Abera
- Faculty of Veterinary Medicine, Hawassa University, P.O. Box 005, Hawassa, Ethiopia
| | - Rahmeto Abebe
- Faculty of Veterinary Medicine, Hawassa University, P.O. Box 005, Hawassa, Ethiopia.
| | - Barbara Wieland
- International Livestock Research Institute (ILRI), P.O. Box 5689, Addis Ababa, Ethiopia
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Moyo DZ, Chakuya J, Sungirai M. Ixodid ticks of African buffalo (Syncerus caffer), impala (Aepyceros melampus) and elephant (Loxodonta africana) in five protected park estates in the Zambezi valley, Zimbabwe. Exp Appl Acarol 2018; 75:409-417. [PMID: 30088213 DOI: 10.1007/s10493-018-0275-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
Wildlife hosts many pathogens of economic importance and is considered as a reservoir of important tick-borne diseases of livestock in southern Africa. The species composition of ticks parasitizing buffalo (Syncerus caffer), impala (Aepyceros melampus) and elephant (Loxodonta africana) was investigated in five protected parks in the Zambezi valley, Zimbabwe. A total of 1104 adult ticks was collected from 75 adult animals comprising five buffaloes, five elephants and five impalas drawn from five protected wildlife parks. Five tick species belonging to two genera were recovered, with Rhipicephalus decoloratus being the most prevalent species in all the three animal groups. Amblyomma hebraeum was only recovered from buffaloes whereas Rhipicephalus zambeziensis was recovered from buffalos and elephants. Significant differences in mean tick species distribution and concentration were observed amongst the wildlife parks and these appeared to be influenced by the number of hosts in each park. The study revealed that buffaloes are the major host of R. decoloratus in the Zambezi valley. The presence of these ixodid ticks within the Zambezi valley may have significant ecological and economic impacts on wildlife conservation, domestic animals and human health.
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Affiliation(s)
- Doreen Zandile Moyo
- Department of Applied Biosciences and Biotechnology, Midlands State University, P. Bag 9055, Gweru, Zimbabwe.
| | - Jeremiah Chakuya
- Zimbabwe Parks and Wildlife Management Authority, Matusadona National Parks, Private Bag 2003, Kariba, Zimbabwe
| | - Marvelous Sungirai
- Department of Animal and Wildlife Sciences, Midlands State University, P. Bag 9055, Gweru, Zimbabwe
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Kafle P, Peacock SJ, Grond S, Orsel K, Kutz S. Temperature-dependent development and freezing survival of protostrongylid nematodes of Arctic ungulates: implications for transmission. Parasit Vectors 2018; 11:400. [PMID: 29986762 PMCID: PMC6038258 DOI: 10.1186/s13071-018-2946-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Umingmakstrongylus pallikuukensis and Varestrongylus eleguneniensis are two potentially pathogenic lungworms of caribou and muskoxen in the Canadian Arctic. These parasites are currently undergoing northward range expansion at differential rates. It is hypothesized that their invasion and spread to the Canadian Arctic Archipelago are in part driven by climate warming. However, very little is known regarding their physiological ecology, limiting our ability to parameterize ecological models to test these hypotheses and make meaningful predictions. In this study, the developmental parameters of V. eleguneniensis inside a gastropod intermediate host were determined and freezing survival of U. pallikuukensis and V. eleguneniensis were compared. METHODS Slug intermediate hosts, Deroceras laeve, were collected from their natural habitat and experimentally infected with first-stage larvae (L1) of V. eleguneniensis. Development of L1 to third-stage larvae (L3) in D. laeve was studied at constant temperature treatments from 8.5 to 24 °C. To determine freezing survival, freshly collected L1 of both parasite species were held in water at subzero temperatures from -10 to -80 °C, and the number of L1 surviving were counted at 2, 7, 30, 90 and 180 days. RESULTS The lower threshold temperature (T0) below which the larvae of V. eleguneniensis did not develop into L3 was 9.54 °C and the degree-days required for development (DD) was 171.25. Both U. pallikuukensis and V. eleguneniensis showed remarkable freeze tolerance: more than 80% of L1 survived across all temperatures and durations. Larval survival decreased with freezing duration but did not differ between the two species. CONCLUSION Both U. pallikuukensis and V. eleguneniensis have high freezing survival that allows them to survive severe Arctic winters. The higher T0 and DD of V. eleguneniensis compared to U. pallikuukensis may contribute to the comparatively slower range expansion of the former. Our study advances knowledge of Arctic parasitology and provides ecological and physiological data that can be useful for parameterizing ecological models.
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Affiliation(s)
- Pratap Kafle
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB Canada
| | - Stephanie J. Peacock
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, AB Canada
| | - Sarah Grond
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ USA
| | - Karin Orsel
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB Canada
| | - Susan Kutz
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB Canada
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Laurent F, Lacroix-Lamandé S. Innate immune responses play a key role in controlling infection of the intestinal epithelium by Cryptosporidium. Int J Parasitol 2017; 47:711-721. [PMID: 28893638 DOI: 10.1016/j.ijpara.2017.08.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/24/2017] [Accepted: 08/23/2017] [Indexed: 12/15/2022]
Abstract
Cryptosporidium infection leads to acute diarrhea worldwide. The development of cryptosporidiosis is closely related to the immune status of its host, affecting primarily young ruminants, infants, and immunocompromised individuals. In recent years, several studies have improved our knowledge on the immune mechanisms responsible for the control of the acute phase of the infection and have highlighted the importance of innate immunity. The parasite develops in the apical side of intestinal epithelial cells, giving these cells a central role, as they are both the exclusive host cell for replication of the parasite and participate in the protective immune response. Epithelial cells signal the infection by producing chemokines, attracting immune cells to the infected area. They also actively participate in host defense by inducing apoptosis and releasing antimicrobial peptides, free or incorporated into luminal exosomes, with parasiticidal activity. The parasite has developed several escape mechanisms to slow down these protective mechanisms. Recent development of several three-dimensional culture models and the ability to genetically manipulate Cryptosporidium will greatly help to further investigate host-pathogen interactions and identify virulence factors. Intestinal epithelial cells require the help of immune cells to clear the infection. Intestinal dendritic cells, well known for their ability to induce and orchestrate adaptive immunity, play a key role in controlling the very early steps of Cryptosporidium parvum infection by acting as immunological sentinels and active effectors. However, inflammatory monocytes, which are quickly and massively recruited to the infected mucosa, seem to participate in the loss of epithelial integrity. In addition to new promising chemotherapies, we must consider stimulating the innate immunity of neonates to strengthen their ability to control Cryptosporidium development. The microbiota plays a fundamental role in the development of intestinal immunity and may be considered to be a third actor in host-pathogen interactions. There is an urgent need to reduce the incidence of this yet poorly controlled disease in the populations of developing countries, and decrease economic losses due to infected livestock.
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Affiliation(s)
- Fabrice Laurent
- UMR1282 Infectiologie et Santé Publique, INRA Centre Val de Loire, Université François Rabelais de Tours, 37380 Nouzilly, France.
| | - Sonia Lacroix-Lamandé
- UMR1282 Infectiologie et Santé Publique, INRA Centre Val de Loire, Université François Rabelais de Tours, 37380 Nouzilly, France.
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García-Lunar P, Ortega-Mora LM, Schares G, Diezma-Díaz C, Álvarez-García G. A new lyophilized tachyzoite based ELISA to diagnose Besnoitia spp. infection in bovids and wild ruminants improves specificity. Vet Parasitol 2017; 244:176-182. [PMID: 28917311 DOI: 10.1016/j.vetpar.2017.07.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/20/2017] [Accepted: 07/22/2017] [Indexed: 11/19/2022]
Abstract
Recent studies have reported that routinely used whole or soluble Besnoitia besnoiti tachyzoite (TZ) extract-based ELISAs potentially give rise to a high number of false-positive results, which may compromise control and the epidemiological studies of bovine besnoitiosis. Thus, western blot (WB) has been recommended as a confirmatory test. In the present study, a new ELISA test that employs lyophilized tachyzoites for the first time (BbSALUVET ELISA 2.0) was developed and validated with cattle sera (n=606) under a worst-case scenario. False positive and false negative, soluble TZ extract-based BbSALUVET ELISA 1.0 reactors were overrepresented, and WB was used as the reference test. One commercial test (PrioCHECK Besnoitia Ab 2.0, which employs whole TZ extract) and a recently developed membrane-enriched ELISA (APure-BbELISA) were also tested. The three ELISAs showed high AUC values (>0.9). However, the best diagnostic performance corresponded to the BbSALUVET ELISA 2.0 and the APure-BbELISA [(92% sensitivity (Se) and 98% specificity (Sp)] followed by PrioCHECK Besnoitia Ab 2.0 (88% Se, 98% Sp, and 4.5% doubtful results). In addition, the BbSALUVET ELISA 2.0 was validated with wild ruminant sera, and excellent performance (96% Se, 97% Sp, and 4% doubtful results) was obtained again. A different antigenic composition of the lyophilized tachyzoites, compared with whole or soluble tachyzoite extracts, may be responsible for the improved diagnostic performance. This study proposes the use of the BbSALUVET ELISA 2.0 in cattle prior to entry to herds free of the disease and in valuable samples prior to a selective culling without the need of a confirmatory Western Blot test in positive samples due to its excellent specificity.
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Affiliation(s)
- P García-Lunar
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain
| | - L M Ortega-Mora
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain
| | - G Schares
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Epidemiology, Greifswald-Isle of Riems, Germany
| | - C Diezma-Díaz
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain
| | - G Álvarez-García
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain.
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Mehmood K, Zhang H, Sabir AJ, Abbas RZ, Ijaz M, Durrani AZ, Saleem MH, Ur Rehman M, Iqbal MK, Wang Y, Ahmad HI, Abbas T, Hussain R, Ghori MT, Ali S, Khan AU, Li J. A review on epidemiology, global prevalence and economical losses of fasciolosis in ruminants. Microb Pathog 2017; 109:253-262. [PMID: 28602837 DOI: 10.1016/j.micpath.2017.06.006] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/05/2017] [Accepted: 06/06/2017] [Indexed: 11/18/2022]
Abstract
Fasciolosis is an important plant borne trematode zoonosis in ruminants caused by the Fasciola hepatica and Fasciola gigentica, It is classified as a neglected tropical disease and found in more than 50 countries especially where sheep and cattle are reared. Fasciolosis is a serious animal health problems in many rural and urban areas of world, causing significant financial losses due to decrease in production and viscera condemnation in animals. Accurate diagnosis of fasciolosis is always remained a challenging task for the field practitioners. There is no comprehensive summary on the occurrence and distribution of the infection at international level. Therefore, we intended to provide a complete overview on the prevalence and epidemiology of fasciolosis in farm animals from a global prospective. It includes to map the global distribution of fasciolosis in different areas of the world to identify the endemic regions which may be a source of potential disease outbreak. The financial liability related to fasciolosis on the livestock production has also been addressed. For this purpose, the published data during 2000-2015 (15 years) on fasciolosis was reviewed and collected by electronic literature search of four databases including Google, PubMed, Science Direct, and Web of Science. Data presented are contemplated to enhance our current understanding of the parasite's geographical distribution, host range, and economic losses. Information provided would be useful for the application of more effective control strategies against fasciolosis in different geo-economics regions of the world.
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Affiliation(s)
- Khalid Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan.
| | - Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Ahmad Jawad Sabir
- Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribe, Victoria 3030, Australia
| | - Rao Zahid Abbas
- Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, 38000, Pakistan.
| | - Muhammad Ijaz
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Aneela Zameer Durrani
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Muhammad Hassan Saleem
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Mujeeb Ur Rehman
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Kashif Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yajing Wang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hafiz Ishfaq Ahmad
- Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Huazhong Agricultural University, Huebi, Wuhan 430070, PR China
| | - Tariq Abbas
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan
| | - Riaz Hussain
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan
| | - Muhammad Taslim Ghori
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan
| | - Sadaqat Ali
- University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan
| | - Aman Ullah Khan
- College of Veterinary & Animal Sciences Jhang, Sub-Campus of University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet 860000, PR China.
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Tsapko NV. [Ticks (Acari, ixodidae) of the North Caucasus: Species diversity, host-parasite relationships]. Parazitologiia 2017; 51:104-120. [PMID: 29405683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Biological diversity of ixodid tick fauna of the North Caucasus is analyzed. On the whole, 38 tick species are represented in the fauna of the North Caucasus. Their distribution within the region, biotopic features, and host-parasite relationships of different stages of ontogenesis are considered.
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Mijele D, Iwaki T, Chiyo PI, Otiende M, Obanda V, Rossi L, Soriguer R, Angelone-Alasaad S. Influence of Massive and Long Distance Migration on Parasite Epidemiology: Lessons from the Great Wildebeest Migration. Ecohealth 2016; 13:708-719. [PMID: 27554373 DOI: 10.1007/s10393-016-1156-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 07/18/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
Very little is known about the influence of massive and long distance migration on parasite epidemiology. Migration can simultaneously minimize exposure to common parasites in their habitats and increase exposure to novel pathogens from new environments and habitats encountered during migration, while physiological stress during long distance movement can lead to immune suppression, which makes migrants vulnerable to parasites. In this paper, we investigated the diversity, prevalence, parasite load, co-infection patterns and predilection sites of adult gastrointestinal helminths in 130 migrating wildebeests and tested for their relation with animal age, sex and migration time (which also could indicate different migration routes), and compared them with the non-migratory wildebeest. Surprisingly, only four parasite species were found, Oesophagostomum columbianum, Haemonchus placei, Calicophoron raja and Moniezia expansa, which were lower than in non-migratory wildebeest reported in the literature. These parasites were generalists, infecting livestock, and suggests that wildebeest and livestock, because of their interaction during migration, have a cross-infection risk. There was a negative relation between parasites diversity, prevalence and intensity of infection, and host age, which suggests that wildebeests acquire protective immunity against these parasites as they get older. Prevalence and intensity of infection were higher among wildebeest crossing the Mara Bridge (early migrants) compared to those crossing the Serena (late migrants), which suggests that early migrants (or migrants originating from different areas) have varying infection intensities. The prevalence and intensity of infection were higher in males compared to females and may be due to ecological, behavioural, or physiological differences between males and females. Our findings compared to those of previous studies suggest that migration may provide a mechanism to minimize exposure of hosts to common parasites through migratory escape, but this result awaits examination of helminths epidemiology of non-migratory wildebeests from areas of migrant origins. The potential parasitic cross-infection between wildebeests and livestock is a real risk to be taken into account in the management of wildebeest migration corridors.
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Affiliation(s)
- Domnic Mijele
- Forensic and Genetics Laboratory, Kenya Wildlife Service, P.O Box 40241-00100, Nairobi, Kenya.
| | - Takashi Iwaki
- Meguro Parasitological Museum, 4-1-1 Shimomeguro, Meguro-ku, Tokyo, 153-0064, Japan
| | - Patrick I Chiyo
- Forensic and Genetics Laboratory, Kenya Wildlife Service, P.O Box 40241-00100, Nairobi, Kenya
| | - Moses Otiende
- Forensic and Genetics Laboratory, Kenya Wildlife Service, P.O Box 40241-00100, Nairobi, Kenya
| | - Vincent Obanda
- Forensic and Genetics Laboratory, Kenya Wildlife Service, P.O Box 40241-00100, Nairobi, Kenya
| | - Luca Rossi
- Dipartimento di Scienze Veterinarie, Università degli Studi di Torino, L.go Braccini 1, I-10095, Grugliasco, Italy
| | - Ramon Soriguer
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), Avda. Américo Vespucio s/n 41092, Seville, Spain
| | - Samer Angelone-Alasaad
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), Avda. Américo Vespucio s/n 41092, Seville, Spain.
- Institute of Evolutionary Biology and Environmental Studies (IEU), University of Zürich, Winterthurerstrasse 190, 8057, Zurich, Switzerland.
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Zvinorova PI, Halimani TE, Muchadeyi FC, Matika O, Riggio V, Dzama K. Breeding for resistance to gastrointestinal nematodes - the potential in low-input/output small ruminant production systems. Vet Parasitol 2016; 225:19-28. [PMID: 27369571 PMCID: PMC4938797 DOI: 10.1016/j.vetpar.2016.05.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 04/28/2016] [Accepted: 05/12/2016] [Indexed: 02/07/2023]
Abstract
The control of gastrointestinal nematodes (GIN) is mainly based on the use of drugs, grazing management, use of copper oxide wire particles and bioactive forages. Resistance to anthelmintic drugs in small ruminants is documented worldwide. Host genetic resistance to parasites, has been increasingly used as a complementary control strategy, along with the conventional intervention methods mentioned above. Genetic diversity in resistance to GIN has been well studied in experimental and commercial flocks in temperate climates and more developed economies. However, there are very few report outputs from the more extensive low-input/output smallholder systems in developing and emerging countries. Furthermore, results on quantitative trait loci (QTL) associated with nematode resistance from various studies have not always been consistent, mainly due to the different nematodes studied, different host breeds, ages, climates, natural infections versus artificial challenges, infection level at sampling periods, among others. The increasing use of genetic markers (Single Nucleotide Polymorphisms, SNPs) in GWAS or the use of whole genome sequence data and a plethora of analytic methods offer the potential to identify loci or regions associated nematode resistance. Genomic selection as a genome-wide level method overcomes the need to identify candidate genes. Benefits in genomic selection are now being realised in dairy cattle and sheep under commercial settings in the more advanced countries. However, despite the commercial benefits of using these tools, there are practical problems associated with incorporating the use of marker-assisted selection or genomic selection in low-input/output smallholder farming systems breeding schemes. Unlike anthelmintic resistance, there is no empirical evidence suggesting that nematodes will evolve rapidly in response to resistant hosts. The strategy of nematode control has evolved to a more practical manipulation of host-parasite equilibrium in grazing systems by implementation of various strategies, in which improvement of genetic resistance of small ruminant should be included. Therefore, selection for resistant hosts can be considered as one of the sustainable control strategy, although it will be most effective when used to complement other control strategies such as grazing management and improving efficiency of anthelmintics currently.
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Affiliation(s)
- P I Zvinorova
- Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa; Department of Para-clinical Veterinary Studies, University of Zimbabwe, P.O. MP167, Mt. Pleasant, Harare, Zimbabwe.
| | - T E Halimani
- Department of Animal Science, University of Zimbabwe, P.O. MP167, Mt. Pleasant, Harare, Zimbabwe.
| | - F C Muchadeyi
- Biotechnology Platform, Agriculture Research Council Private Bag X5, Onderstepoort, 0110, South Africa.
| | - O Matika
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, MidlothianEH25 9RG, UK.
| | - V Riggio
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, MidlothianEH25 9RG, UK.
| | - K Dzama
- Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa.
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Hoste H, Torres-Acosta JFJ, Quijada J, Chan-Perez I, Dakheel MM, Kommuru DS, Mueller-Harvey I, Terrill TH. Interactions Between Nutrition and Infections With Haemonchus contortus and Related Gastrointestinal Nematodes in Small Ruminants. Adv Parasitol 2016; 93:239-351. [PMID: 27238007 DOI: 10.1016/bs.apar.2016.02.025] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Interactions between host nutrition and feeding behaviour are central to understanding the pathophysiological consequences of infections of the digestive tract with parasitic nematodes. The manipulation of host nutrition provides useful options to control gastrointestinal nematodes as a component of an integrated strategy. Focussed mainly on the Haemonchus contortus infection model in small ruminants, this chapter (1) illustrates the relationship between quantitative (macro- and micro-nutrients) and qualitative (plant secondary metabolites) aspects of host nutrition and nematode infection, and (2) shows how basic studies aimed at addressing some generic questions can help to provide solutions, despite the considerable diversity of epidemiological situations and breeding systems.
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Affiliation(s)
- H Hoste
- INRA, UMR 1225 IHAP, Toulouse, France; Université de Toulouse, Toulouse, France
| | | | - J Quijada
- INRA, UMR 1225 IHAP, Toulouse, France; Université de Toulouse, Toulouse, France
| | - I Chan-Perez
- Universidad Autónoma de Yucatán, Merida, Yucatan, Mexico
| | - M M Dakheel
- University of Reading, Reading, United Kingdom
| | - D S Kommuru
- Fort Valley State University, Fort Valley, GA, United States
| | | | - T H Terrill
- Fort Valley State University, Fort Valley, GA, United States
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MA YA, SHANG WJ. [Endemic Situation of Echinococcosis in Gannan Tibetan Autonomous Prefecture]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2015; 33:352-356. [PMID: 26931040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To understand the endemic status of echinococcosis in Gannan Tibetan Autonomous Prefecture. METHODS The 2007-2013 survey data on hydatid disease prevention and control were collected from 8 counties/cities in Gannan Tibetan Autonomous Prefecture and analyzed. Ultrasound scanning was used to detect echinococcosis infection, ELISA was performed to detect anti-Echinococcus IgG in serum of children under 12 years, and double-antibody sandwich ELISA method was used to detect Echinococcus antigen in dog's feces. Visceral dissection was performed to examine hydatid infection in domestic ruminants. RESULTS The prevalence of echinococcosis in residents was 225/100 000 (810/360 440), comprising 224/10 0000 (807/360 440) for cystic echinococcosis and 1/100 000(3/360 440) for alveolar echinococcosis. The prevalence was 2.3/100 000(340/151 280) in males and 2.3/100 000(470/209 160) in females, with no significant difference(χ(2)=6.41 ,P>0.05). Among different age populations, the 30-40 age group had the highest proportion (44.2%, 358/810) to all detected infections. Besides, the prevalence was the highest in herdsmen, followed by farmers. Echinococcosis was detected in 372 administrative villages in the Prefecture. The positive rate for serum anti-Echinococcus IgG was 4.0%(1 921/47 841) in children under 12 years. The positive rate for Echinococcus antigen in dog's feces was 5.5% (3 523/64 521). The rate of hydatid infection in domestic ruminants was 3.3% (1 148/35 134). After seven years' comprehensive control, the prevalence of echinococcosis in residents dropped from 440/100 000(97/21 938) in 2007 to 290/100 000 (160/55 954) in 2013 (χ(2)=11.69,P<0.05). The positive rate for serum anti-Echinococcus IgG in children also dropped from 7.9% (150/1 902) in 2007 to 2.1% (151/7 100) in 2013. Consistently, the positive rate for Echinococcus antigen in dog's feces dropped from 11.9% (335/2 819) in 2007 to 3.3%(466/13 608) in 2013 (X(2)= 338.52,P<0.05); and the rate of hydatid infection in domestic ruminants dropped from 8.8%(235/2 658) in 2007 to 1.5%(107/7 271) in 2013(χ(2)=317.86, P<0.05). CONCLUSION The control activities during 2007-2013 has shown significant achievements in reducing echinococcosis in Gannan Tibetan Autonomous Prefecture.
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Chamuah JK, Sakhrie A, Lama S, Chandra S, Chigure GM, Bauri RK, Jacob SS. Molecular characterization of Setaria digitata from Mithun (Bos frontalis). Acta Parasitol 2015. [PMID: 26204175 DOI: 10.1515/ap-2015-0054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Mithun is a strongly built hill animal of Southeast Asia and plays an important role in the socio-economic and cultural life of the tribal population. Setaria digitata isolated from peritoneal cavity of mithun both from Arunachal Pradesh and Nagaland were characterized based on conserved region of 12SrDNA, 28SrDNA and ITS-2 and mitochondrial gene CoxI. Based on sequence analysis, it was found to be 99% similarity with Srilankan isolate of S. digitata.
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MESH Headings
- Animals
- DNA, Helminth/chemistry
- DNA, Helminth/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- DNA, Ribosomal Spacer/chemistry
- DNA, Ribosomal Spacer/genetics
- India
- Peritoneal Cavity/parasitology
- RNA, Ribosomal/chemistry
- RNA, Ribosomal/genetics
- RNA, Ribosomal, 28S/chemistry
- RNA, Ribosomal, 28S/genetics
- Ruminants/parasitology
- Sequence Analysis, DNA
- Setaria Nematode/classification
- Setaria Nematode/genetics
- Setaria Nematode/isolation & purification
- Setariasis/parasitology
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Quijada J, Fryganas C, Ropiak HM, Ramsay A, Mueller-Harvey I, Hoste H. Anthelmintic Activities against Haemonchus contortus or Trichostrongylus colubriformis from Small Ruminants Are Influenced by Structural Features of Condensed Tannins. J Agric Food Chem 2015; 63:6346-54. [PMID: 26066999 DOI: 10.1021/acs.jafc.5b00831] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Plants containing condensed tannins (CTs) may hold promise as alternatives to synthetic anthelmintic (AH) drugs for controlling gastrointestinal nematodes (GINs). However, the structural features that contribute to the AH activities of CTs remain elusive. This study probed the relationships between CT structures and their AH activities. Eighteen plant resources were selected on the basis of their diverse CT structures. From each plant resource, two CT fractions were isolated and their in vitro AH activities were measured with the larval exsheathment inhibition assay, which was applied to Haemonchus contortus and Trichostrongylus colubriformis. Calculation of mean EC50 values indicated that H. contortus was more susceptible than T. colubriformis to the different fractions and that the F1 fractions were less efficient than the F2 ones, as indicated by the respective mean values for H. contortus, F1 = 136.9 ± 74.1 μg/mL and F2 = 108.1 ± 53.2 μg/mL, and for T. colubriformis, F1 = 233 ± 54.3 μg/mL and F2 = 166 ± 39.9 μg/mL. The results showed that the AH activity against H. contortus was associated with the monomeric subunits that give rise to prodelphinidins (P < 0.05) and with CT polymer size (P < 0.10). However, for T. colubriformis AH activity was correlated only with prodelphinidins (P < 0.05). These results suggest that CTs have different modes of action against different parasite species.
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Affiliation(s)
- Jessica Quijada
- †INRA, UMR 1225 IHAP, 23 Chemin des Capelles, Toulouse F-31076, France
- ‡Université de Toulouse, ENVT, 23 Chemin des Capelles, Toulouse F-31076, France
| | - Christos Fryganas
- §School of Agriculture, Policy and Development, University of Reading, 1 Earley Gate, P.O. Box 236, Reading RG6 6AT, United Kingdom
| | - Honorata M Ropiak
- §School of Agriculture, Policy and Development, University of Reading, 1 Earley Gate, P.O. Box 236, Reading RG6 6AT, United Kingdom
| | - Aina Ramsay
- §School of Agriculture, Policy and Development, University of Reading, 1 Earley Gate, P.O. Box 236, Reading RG6 6AT, United Kingdom
| | - Irene Mueller-Harvey
- §School of Agriculture, Policy and Development, University of Reading, 1 Earley Gate, P.O. Box 236, Reading RG6 6AT, United Kingdom
| | - Hervé Hoste
- †INRA, UMR 1225 IHAP, 23 Chemin des Capelles, Toulouse F-31076, France
- ‡Université de Toulouse, ENVT, 23 Chemin des Capelles, Toulouse F-31076, France
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Estrada-Peña A, de la Fuente J, Latapia T, Ortega C. The Impact of Climate Trends on a Tick Affecting Public Health: A Retrospective Modeling Approach for Hyalomma marginatum (Ixodidae). PLoS One 2015; 10:e0125760. [PMID: 25955315 PMCID: PMC4425654 DOI: 10.1371/journal.pone.0125760] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 03/26/2015] [Indexed: 11/23/2022] Open
Abstract
The impact of climate trends during the period 1901–2009 on the life cycle of Hyalomma marginatum in Europe was modeled to assess changes in the physiological processes of this threat to public health. Monthly records of temperature and water vapour at a resolution of 0.5° and equations describing the life cycle processes of the tick were used. The climate in the target region affected the rates of the life cycle processes of H. marginatum: development rates increased, mortality rates in molting stages decreased, and the survival rates of questing ticks decreased in wide territories of the Mediterranean basin. The modeling framework indicated the existence of critical areas in the Balkans, central Europe, and the western coast of France, where the physiological processes of the tick improved to extents that are consistent with the persistence of populations if introduced. A spatially explicit risk assessment was performed to detect candidate areas where active surveys should be performed to monitor changes in tick density or persistence after a hypothetical introduction. We detected areas where the critical abiotic (climate) and biotic (host density) factors overlap, including most of the Iberian peninsula, the Mediterranean coast of France, eastern Turkey, and portions of the western Black Sea region. Wild ungulate densities are unavailable for large regions of the territory, a factor that might affect the outcome of the study. The risk of successfully establishing H. marginatum populations at northern latitudes of its current colonization range seems to be still low, even if the climate has improved the performance of the tick in these areas.
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Affiliation(s)
- Agustín Estrada-Peña
- Department of Animal Pathology, Faculty of Veterinary Medicine, Miguel Servet 177, 50013, Zaragoza, Spain
- * E-mail:
| | - José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, 3 Ronda de Toledo s/n, 13005, Ciudad Real, Spain
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma, 74078, United States of America
| | - Tamara Latapia
- Department of Animal Pathology, Faculty of Veterinary Medicine, Miguel Servet 177, 50013, Zaragoza, Spain
| | - Carmelo Ortega
- Department of Animal Pathology, Faculty of Veterinary Medicine, Miguel Servet 177, 50013, Zaragoza, Spain
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Verocai GG, Hoberg EP, Vikøren T, Handeland K, Ytrehus B, Rezansoff AM, Davidson RK, Gilleard JS, Kutz SJ. Resurrection and redescription of Varestrongylus alces (Nematoda: Protostrongylidae), a lungworm of the Eurasian moose (Alces alces), with report on associated pathology. Parasit Vectors 2014; 7:557. [PMID: 25518921 PMCID: PMC4326405 DOI: 10.1186/s13071-014-0557-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 11/23/2014] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Varestrongylus alces, a lungworm in Eurasian moose from Europe has been considered a junior synonym of Varestrongylus capreoli, in European roe deer, due to a poorly detailed morphological description and the absence of a type-series. METHODS Specimens used in the redescription were collected from lesions in the lungs of Eurasian moose, from Vestby, Norway. Specimens were described based on comparative morphology and integrated approaches. Molecular identification was based on PCR, cloning and sequencing of the ITS-2 region of the nuclear ribosomal DNA. Phylogenetic analysis compared V. alces ITS-2 sequences to these of other Varestrongylus species and other protostrongylids. RESULTS Varestrongylus alces is resurrected for protostrongylid nematodes of Eurasian moose from Europe. Varestrongylus alces causes firm nodular lesions that are clearly differentiated from the adjacent lung tissue. Histologically, lesions are restricted to the parenchyma with adult, egg and larval parasites surrounded by multinucleated giant cells, macrophages, eosinophilic granulocytes, lymphocytes. The species is valid and distinct from others referred to Varestrongylus, and should be separated from V. capreoli. Morphologically, V. alces can be distinguished from other species by characters in the males that include a distally bifurcated gubernaculum, arched denticulate crura, spicules that are equal in length and relatively short, and a dorsal ray that is elongate and bifurcated. Females have a well-developed provagina, and are very similar to those of V. capreoli. Morphometrics of first-stage larvae largely overlap with those of other Varestrongylus. Sequences of the ITS-2 region strongly support mutual independence of V. alces, V. cf. capreoli, and the yet undescribed species of Varestrongylus from North American ungulates. These three taxa form a well-supported crown-clade as the putative sister of V. alpenae. The association of V. alces and Alces or its ancestors is discussed in light of host and parasite phylogeny and host historical biogeography. CONCLUSIONS Varestrongylus alces is a valid species, and should be considered distinct from V. capreoli. Phylogenetic relationships among Varestrongylus spp. from Eurasia and North America are complex and consistent with faunal assembly involving recurrent events of geographic expansion, host switching and subsequent speciation.
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Affiliation(s)
- Guilherme G Verocai
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada.
| | - Eric P Hoberg
- US Department of Agriculture, United States National Parasite Collection, Agricultural Research Service, BARC East No. 1180, 10300 Baltimore Avenue, Beltsville, Maryland, 20705, USA.
| | - Turid Vikøren
- Norwegian Veterinary Institute, Ullevålsveien 68, N-0454, Oslo, Norway.
| | - Kjell Handeland
- Norwegian Veterinary Institute, Ullevålsveien 68, N-0454, Oslo, Norway.
| | - Bjørnar Ytrehus
- Norwegian Veterinary Institute, Ullevålsveien 68, N-0454, Oslo, Norway.
- Present address: Norwegian Institute for Nature Research, P.O. box 5685, Sluppen, N-7485, Trondheim, Norway.
| | - Andrew M Rezansoff
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada.
| | - Rebecca K Davidson
- Norwegian Veterinary Institute, Ullevålsveien 68, N-0454, Oslo, Norway.
- Present address: Norwegian Defence Research Institute, Postboks 25, 2027, Kjeller, Norway.
| | - John S Gilleard
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada.
| | - Susan J Kutz
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada.
- Canadian Wildlife Health Cooperative - Alberta Node, Faculty of Veterinary Medicine, University of Calgary, 3280 Hospital Drive NW, Calgary, Alberta, T2N 4Z6, Canada.
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Adediran OA, Adebiyi AI, Uwalaka EC. Prevalence of Fasciola species in ruminants under extensive management system in Ibadan southwestern Nigeria. Afr J Med Med Sci 2014; 43 Suppl:137-141. [PMID: 26949791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Fasciolosis is a zoonotic trematode of ruminants and a common parasite in cattle in Nigeria. With the increasing numbers of small household cattle herds kept under extensive management system as well as the more usual small ruminants, there is a possibility therefore that parasites common to these ruminants but better adapted to cattle such as Fasciola may also be on the increase within the small ruminant population as they graze freely over the same wide area and sometimes freely mix. AIM The aim of the study is to determine the prevalence of Fasciola spp in sheep, goats and cattle in Ibadan during the short wet season, (August-October 2011). METHODS Faecal samples were collected per rectum from 440 each of goats and sheep and 291 cattle. Helminth ova were recovered using sedimentation technique for faecal examination. RESULTS A total of 40 goats (9.1%), 53 sheep (12.0%) and 158 cattle (54.3%) were positive for Fasciola ova which reflects an increase in prevalence in small ruminants. CONCLUSION This implies that the entire Ibadan is endemic for Fasciola spp and small ruminants may serve as an important link in the epidemiology of Fasciola spp infection. More so, this has implications for the scavenging household animals which receive little or no medical attention and man that may acquire this trematode by inadvertently eating vegetables with encysted Fasciola metacercariae.
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41
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Toet H, Piedrafita DM, Spithill TW. Liver fluke vaccines in ruminants: strategies, progress and future opportunities. Int J Parasitol 2014; 44:915-27. [PMID: 25200351 DOI: 10.1016/j.ijpara.2014.07.011] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 07/18/2014] [Accepted: 07/21/2014] [Indexed: 12/27/2022]
Abstract
The development of a vaccine for Fasciola spp. in livestock is a challenge and would be advanced by harnessing our knowledge of acquired immune mechanisms expressed by resistant livestock against fluke infection. Antibody-dependent cell-mediated cytotoxicity directed to the surface tegument of juvenile/immature flukes is a host immune effector mechanism, suggesting that antigens on the surface of young flukes may represent prime candidates for a fluke vaccine. A Type 1 immune response shortly after fluke infection is associated with resistance to infection in resistant sheep, indicating that vaccine formulations should attempt to induce Type 1 responses to enhance vaccine efficacy. In cattle or sheep, an optimal fluke vaccine would need to reduce mean fluke burdens in a herd below the threshold of 30-54 flukes to ensure sustainable production benefits. Fluke infection intensity data suggest that vaccine efficacy of approximately 80% is required to reduce fluke burdens below this threshold in most countries. With the increased global prevalence of triclabendazole-resistant Fasciolahepatica, it may be commercially feasible in the short term to introduce a fluke vaccine of reasonable efficacy that will provide economic benefits for producers in regions where chemical control of new drug-resistant fluke infections is not viable. Commercial partnerships will be needed to fast-track new candidate vaccines using acceptable adjuvants in relevant production animals, obviating the need to evaluate vaccine antigens in rodent models.
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Affiliation(s)
- Hayley Toet
- Department of Agricultural Sciences and Centre for AgriBioscience, La Trobe University, Bundoora, Victoria 3083, Australia
| | - David M Piedrafita
- School of Applied Sciences and Engineering, Federation University, Churchill, Victoria 3842, Australia
| | - Terry W Spithill
- Department of Agricultural Sciences and Centre for AgriBioscience, La Trobe University, Bundoora, Victoria 3083, Australia.
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42
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Li N, Xiao L, Alderisio K, Elwin K, Cebelinski E, Chalmers R, Santin M, Fayer R, Kvac M, Ryan U, Sak B, Stanko M, Guo Y, Wang L, Zhang L, Cai J, Roellig D, Feng Y. Subtyping Cryptosporidium ubiquitum,a zoonotic pathogen emerging in humans. Emerg Infect Dis 2014; 20:217-24. [PMID: 24447504 PMCID: PMC3901490 DOI: 10.3201/eid2002.121797] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Cryptosporidium ubiquitum is an emerging zoonotic pathogen. In the past, it was not possible to identify an association between cases of human and animal infection. We conducted a genomic survey of the species, developed a subtyping tool targeting the 60-kDa glycoprotein (gp60) gene, and identified 6 subtype families (XIIa–XIIf) of C. ubiquitum. Host adaptation was apparent at the gp60 locus; subtype XIIa was found in ruminants worldwide, subtype families XIIb–XIId were found in rodents in the United States, and XIIe and XIIf were found in rodents in the Slovak Republic. Humans in the United States were infected with isolates of subtypes XIIb–XIId, whereas those in other areas were infected primarily with subtype XIIa isolates. In addition, subtype families XIIb and XIId were detected in drinking source water in the United States. Contact with C. ubiquitum–infected sheep and drinking water contaminated by infected wildlife could be sources of human infections.
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Van Bodegraven REM, Berends BR, Burt SA. [Vector-borne diseases in ruminants in the Netherlands]. Tijdschr Diergeneeskd 2014; 139:34-39. [PMID: 24498688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Rebecca E M Van Bodegraven
- Institute for Risk Assessment Sciences, Divisie Veterinaire Volksgezondheid, Faculteit Diergeneeskunde, Universiteit Utrecht, Postbus 80175, 3508 TD Utrecht
| | - Boyd R Berends
- Institute for Risk Assessment Sciences, Divisie Veterinaire Volksgezondheid, Faculteit Diergeneeskunde, Universiteit Utrecht, Postbus 80175, 3508 TD Utrecht
| | - Sara A Burt
- Institute for Risk Assessment Sciences, Divisie Veterinaire Volksgezondheid, Faculteit Diergeneeskunde, Universiteit Utrecht, Postbus 80175, 3508 TD Utrecht
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Gebrekidan H, Hailu A, Kassahun A, Rohoušová I, Maia C, Talmi-Frank D, Warburg A, Baneth G. Theileria infection in domestic ruminants in northern Ethiopia. Vet Parasitol 2013; 200:31-8. [PMID: 24360645 DOI: 10.1016/j.vetpar.2013.11.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 11/15/2013] [Accepted: 11/19/2013] [Indexed: 11/20/2022]
Abstract
Piroplasmosis caused by different tick-borne hemoprotozoan parasites of the genera Theileria and Babesia is among the most economically important infections of domestic ruminants in sub-Saharan Africa. A survey for piroplasm infection was conducted in three locations in Northern Ethiopia. Of 525 domestic ruminants surveyed, 80% of the cattle, 94% of the sheep and 2% of the goats were positive for different Theileria spp. based on PCR of blood followed by DNA sequencing. Sheep had a significantly higher rate of infection compared with cattle (P<0.0003) and both sheep and cattle had higher rates of infection compared to goats (P<0.0001). Four species of Theileria were detected in cattle: T. velifera, T. mutans, T. orientalis complex and T. annulata with infection rates of 66, 8, 4, and 2%, respectively. This is the first report of T. annulata, the cause of Tropical Theileriosis in Ethiopia. Of the two Theileria spp. detected in small ruminants, T. ovis was highly prevalent (92%) in sheep and rare in goats (1.5%) whereas T. seperata was infrequent in sheep (2%) and rare in goats (0.4%). None of the animals were positive for Babesia spp.; however, Sarcocystis capracanis and S. tenella were detected in one goat and a sheep, respectively. The widespread distribution of Theileria spp. among cattle in northern Ethiopia including the virulent T. annulata and more mildly pathogenic T. mutans and T. orientalis, and the high infection rate in sheep with the usually sub-clinical T. ovis indicate extensive exposure to ticks and transmission of piroplasms with an important economic impact.
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Affiliation(s)
- Hagos Gebrekidan
- School of Veterinary Medicine, Hebrew University, PO Box 12, Rehovot 76100, Israel
| | - Asrat Hailu
- Department of Microbiology, Immunology & Parasitology, Faculty of Medicine, Addis Ababa University, PO Box 9086, Addis Ababa, Ethiopia
| | - Aysheshm Kassahun
- Department of Microbiology, Immunology & Parasitology, Faculty of Medicine, Addis Ababa University, PO Box 9086, Addis Ababa, Ethiopia; Department of Parasitology, Faculty of Science, Charles University in Prague, Vinicna 7, 128 44 Prague 2, Czech Republic
| | - Iva Rohoušová
- Department of Parasitology, Faculty of Science, Charles University in Prague, Vinicna 7, 128 44 Prague 2, Czech Republic
| | - Carla Maia
- Department of Parasitology, Faculty of Science, Charles University in Prague, Vinicna 7, 128 44 Prague 2, Czech Republic; Medical Parasitology unit. Center of Malaria and other Tropical Diseases. Institute of Tropical Medicine and Hygiene. Universidade Nova de Lisboa, Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Dalit Talmi-Frank
- School of Veterinary Medicine, Hebrew University, PO Box 12, Rehovot 76100, Israel
| | - Alon Warburg
- Department of Microbiology and Molecular Genetics, The Institute for Medical Research Israel-Canada, The Kuvin Centre for the Study of Infectious and Tropical Diseases, The Hebrew University-Hadassah Medical School, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Gad Baneth
- School of Veterinary Medicine, Hebrew University, PO Box 12, Rehovot 76100, Israel.
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Fox NJ, Marion G, Davidson RS, White PCL, Hutchings MR. Modelling parasite transmission in a grazing system: the importance of host behaviour and immunity. PLoS One 2013; 8:e77996. [PMID: 24223133 PMCID: PMC3819330 DOI: 10.1371/journal.pone.0077996] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 09/14/2013] [Indexed: 11/18/2022] Open
Abstract
Parasitic helminths present one of the most pervasive challenges to grazing herbivores. Many macro-parasite transmission models focus on host physiological defence strategies, omitting more complex interactions between hosts and their environments. This work represents the first model that integrates both the behavioural and physiological elements of gastro-intestinal nematode transmission dynamics in a managed grazing system. A spatially explicit, individual-based, stochastic model is developed, that incorporates both the hosts' immunological responses to parasitism, and key grazing behaviours including faecal avoidance. The results demonstrate that grazing behaviour affects both the timing and intensity of parasite outbreaks, through generating spatial heterogeneity in parasite risk and nutritional resources, and changing the timing of exposure to the parasites' free-living stages. The influence of grazing behaviour varies with the host-parasite combination, dependent on the development times of different parasite species and variations in host immune response. Our outputs include the counterintuitive finding that under certain conditions perceived parasite avoidance behaviours (faecal avoidance) can increase parasite risk, for certain host-parasite combinations. Through incorporating the two-way interaction between infection dynamics and grazing behaviour, the potential benefits of parasite-induced anorexia are also demonstrated. Hosts with phenotypic plasticity in grazing behaviour, that make grazing decisions dependent on current parasite burden, can reduce infection with minimal loss of intake over the grazing season. This paper explores how both host behaviours and immunity influence macro-parasite transmission in a spatially and temporally heterogeneous environment. The magnitude and timing of parasite outbreaks is influenced by host immunity and behaviour, and the interactions between them; the incorporation of both regulatory processes is required to fully understand transmission dynamics. Understanding of both physiological and behavioural defence strategies will aid the development of novel approaches for control.
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Affiliation(s)
- Naomi J. Fox
- Disease Systems Team, SRUC, Edinburgh, United Kingdom
- Environment Department, University of York, York, United Kingdom
- Biomathematics and Statistics Scotland, Edinburgh, United Kingdom
| | - Glenn Marion
- Biomathematics and Statistics Scotland, Edinburgh, United Kingdom
- * E-mail:
| | - Ross S. Davidson
- Disease Systems Team, SRUC, Edinburgh, United Kingdom
- Biomathematics and Statistics Scotland, Edinburgh, United Kingdom
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Molnár PK, Dobson AP, Kutz SJ. Gimme shelter--the relative sensitivity of parasitic nematodes with direct and indirect life cycles to climate change. Glob Chang Biol 2013; 19:3291-305. [PMID: 23801641 DOI: 10.1111/gcb.12303] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 06/12/2013] [Indexed: 05/03/2023]
Abstract
Climate change is expected to alter the dynamics of host-parasite systems globally. One key element in developing predictive models for these impacts is the life cycle of the parasite. It is, for example, commonly assumed that parasites with an indirect life cycle would be more sensitive to changing environmental conditions than parasites with a direct life cycle due to the greater chance that at least one of their obligate host species will go extinct. Here, we challenge this notion by contrasting parasitic nematodes with a direct life cycle against those with an indirect life cycle. Specifically, we suggest that behavioral thermoregulation by the intermediate host may buffer the larvae of indirectly transmitted parasites against temperature extremes, and hence climate warming. We term this the 'shelter effect'. Formalizing each life cycle in a comprehensive model reveals a fitness advantage for the direct life cycle over the indirect life cycle at low temperatures, but the shelter effect reverses this advantage at high temperatures. When examined for seasonal environments, the models suggest that climate warming may in some regions create a temporal niche in mid-summer that excludes parasites with a direct life cycle, but allows parasites with an indirect life cycle to persist. These patterns are amplified if parasite larvae are able to manipulate their intermediate host to increase ingestion probability by definite hosts. Furthermore, our results suggest that exploiting the benefits of host sheltering may have aided the evolution of indirect life cycles. Our modeling framework utilizes the Metabolic Theory of Ecology to synthesize the complexities of host behavioral thermoregulation and its impacts on various temperature-dependent parasite life history components in a single measure of fitness, R0 . It allows quantitative predictions of climate change impacts, and is easily generalized to many host-parasite systems.
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Affiliation(s)
- Péter K Molnár
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA
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Kutz SJ, Checkley S, Verocai GG, Dumond M, Hoberg EP, Peacock R, Wu JP, Orsel K, Seegers K, Warren AL, Abrams A. Invasion, establishment, and range expansion of two parasitic nematodes in the Canadian Arctic. Glob Chang Biol 2013; 19:3254-62. [PMID: 23828740 DOI: 10.1111/gcb.12315] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 06/11/2013] [Accepted: 06/25/2013] [Indexed: 05/25/2023]
Abstract
Climate warming is occurring at an unprecedented rate in the Arctic and is having profound effects on host-parasite interactions, including range expansion. Recently, two species of protostrongylid nematodes have emerged for the first time in muskoxen and caribou on Victoria Island in the western Canadian Arctic Archipelago. Umingmakstrongylus pallikuukensis, the muskox lungworm, was detected for the first time in 2008 in muskoxen at a community hunt on the southwest corner of the island and by 2012, it was found several hundred kilometers east in commercially harvested muskoxen near the town of Ikaluktutiak. In 2010, Varestrongylus sp., a recently discovered lungworm of caribou and muskoxen was found in muskoxen near Ikaluktutiak and has been found annually in this area since then. Whereas invasion of the island by U. pallikuukensis appears to have been mediated by stochastic movement of muskoxen from the mainland to the southwest corner of the island, Varestrongylus has likely been introduced at several times and locations by the seasonal migration of caribou between the island and the mainland. A newly permissive climate, now suitable for completion of the parasite life cycles in a single summer, likely facilitated the initial establishment and now drives range expansion for both parasites.
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Affiliation(s)
- Susan J Kutz
- University of Calgary, 3330 Hospital Dr. NW, Calgary, AB, Canada T2N 4N1; Canadian Cooperative Wildlife Health Centre, Alberta Node, Calgary, AB, Canada T2N 4Z6
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Horak IG, Apanaskevich DA, Kariuki EK. A new species of Rhipicephalus (Acari: Ixodidae), a parasite of giraffes in Kenya. J Med Entomol 2013; 50:685-690. [PMID: 23926765 DOI: 10.1603/me12257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A new tick species belonging to the genus Rhipicephalus Koch, 1844 (Acari: Ixodidae), namely, Rhipicephalus walkerae n. sp., is described. The male and female of this species are similar to those of several species in the Rhipicephalus appendiculatus group but can be distinguished from them by the very dense pattern of medium-sized punctations covering the conscutum and scutum, long and narrow dorsal prolongation of the spiracular plate, and relatively short dorsal cornua; in addition, the male has long and narrow adanal plates without a posterolateral angle. R. walkerae is known only from Kenya, where the adults were collected from giraffes, Giraffa camelopardalis (L.).
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Affiliation(s)
- Ivan G Horak
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa
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Apanaskevich DA. Reinstatement of Dermacentor kamshadalus Neumann (Acari: Ixodidae) as a valid species parasitizing mountain goats and sheep in the United States, Canada, and Russia. J Med Entomol 2013; 50:691-700. [PMID: 23926766 PMCID: PMC4807617 DOI: 10.1603/me12278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Reexamination of Dermacentor albipictus (Packard, 1869) holdings stored in the United States National Tick Collection revealed several collections of a morphologically distinct Dermacentor species. Comparison of these specimens with other Dermacentor taxa showed that they are identical to an old taxon originally described as Dermacentor variegatus kamshadalus Neumann, 1908. For more than a century, this taxon was known only from the male holotype specimen collected in Russia, and the name was considered a junior synonym of D. albipictus. D. kamshadalus is reinstated here to a full species rank, and its male is redescribed and its female and nymph are described for the first time. Adults of D. kamshadalus can be distinguished from those of D. albipictus by a short spur on trochanters I, shorter spurs on coxae I, shorter dorsal cornua, more numerous perforations on spiracular plates, less numerous and shorter setae on idiosoma, especially around spiracular plates, and considerably paler coloration of the conscutum and scutum. The nymph of D. kamshadalus can be differentiated from that of D. albipictus by shorter spurs on coxae I and the numerous perforations on the spiracular plates. Adults and nymphs ofD. kamshadalus are recorded from the United States, Canada, and Russia, where they have been collected from mountain goats, Oreamnos americanus (de Blainville), bighorn sheep, Ovis canadensis Shaw, and sheep, Ovis sp. of which the species was not stated.
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Affiliation(s)
- Dmitry A Apanaskevich
- United States National Tick Collection, Georgia Southern University, Statesboro, GA 30460-8056, USA.
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50
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Vasil'eva IS, Ganushkina LA, Gutova VP, Litvinov SK. [The impact of climatic changes on Ixodes (Ixodidae) ticks and their related natural and focal infections]. Med Parazitol (Mosk) 2013:55-63. [PMID: 25924291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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