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Parasite Epidemiology and Molecular Identification in Wild, Domestic, and Companion...
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Parasite Epidemiology and Molecular Identification in Wild, Domestic, and Companion Animals: 2nd Edition

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Veterinary Clinical Studies".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 3269

Special Issue Editors

Dr. Wei Liu

E-Mail Website
Guest Editor
College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
Interests: parasite; epidemiology; molecule identification; omics; genetic evolution; phylogeny
Special Issues, Collections and Topics in MDPI journals
Dr. Yisong Liu

E-Mail Website
Guest Editor
Hunan Provincial the Key Laboratory of Protein Engineering in Animal Vaccine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
Interests: parasitological molecular biology; molecule identification; omics; genetic evolution
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wild, domestic, and companion animals host diverse parasites, including many nematodes, trematodes, cestodes, protozoa, and arthropods, endangering public health. Urbanization and exotic species boost zoonotic parasite spread. Epidemiological studies can emphasize the etiology and monitoring of parasite infections, using tools such as fecal or visual examinations, molecular diagnostics, and immunological techniques. They can also explore the genetic responses of parasites to hosts or environments via genome sequencing and data analysis with bioinformatics tools.

Original research articles are welcomed, especially those exploring the impacts of factors like climate change, anthelmintic treatments, and host immune responses, aiming to improve animal management and welfare and prevent parasite transmission from animals to humans under the "One Health" concept.

Dr. Wei Liu
Dr. Yisong Liu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • epidemiology
  • molecule identification
  • nematode
  • cestode
  • trematode
  • arthropod
  • wild animals
  • domestic animals
  • companion animals

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Related Special Issue

Published Papers (3 papers)

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Research

11 pages, 5643 KB  
Article
Prevalence and Multi-Locus Genotyping of Enterocytozoon bieneusi in Dogs from Fujian Province, Southeast China
by Kai Hu, Yanlong Gu, Sheng-Jie Tang, Si-Ang Li, Yun-Peng Bai, Shang-Lin Li and Dong-Hui Zhou
Animals 2026, 16(6), 862; https://doi.org/10.3390/ani16060862 - 10 Mar 2026
Viewed by 241
Abstract
Enterocytozoon bieneusi is a microsporidian species found ubiquitously in both invertebrate and vertebrate hosts including domestic and wild animals and humans. Enterocytozoon bieneusi typically causes severe or chronic diarrhea, malabsorption and emaciation. This study aimed to investigate the prevalence and genotypic distribution of [...] Read more.
Enterocytozoon bieneusi is a microsporidian species found ubiquitously in both invertebrate and vertebrate hosts including domestic and wild animals and humans. Enterocytozoon bieneusi typically causes severe or chronic diarrhea, malabsorption and emaciation. This study aimed to investigate the prevalence and genotypic distribution of E. bieneusi in dogs in Fujian province, China. A total of 506 fecal samples from dogs were randomly collected from eight districts in Fujian province, China. The presence of E. bieneusi was confirmed through nested PCR targeting ITS gene. Further multilocus sequence typing (MLST) focused on the three microsatellite loci (MS1, MS3, and MS7) and minisatellite locus (MS4) loci. As a result, the infection rates of E. bieneusi in dogs were found to be 5.93% (30/506). A highly significant difference in the prevalence of E. bieneusi was observed across different urban areas (p < 0.01), with Longyan city exhibiting the highest infection rate (24.62%, 16/65), Zhangzhou and Xiamen the lowest (0.00%). Prevalence also varied significantly by source (p < 0.01), age (p < 0.01), gender (p < 0.05), symptom status (p < 0.01), and season (p < 0.01). Three known genotypes of E. bieneusi were identified in 30 dogs’ positive samples, including EbpC, PigEBITS5 and PtEb IX, whereas FJLYD1, FJLYD2 and FJSMD have been identified as new genotypes. EbpC, PigEBITS5, FJLYD1, FJLYD2, and FJSMD all belong to Group 1, while PtEb IX is assigned to Group 11. Genotypes belonging to Group 1, the first major phylogenetic clade, are considered to possess potential zoonotic risks. None of the positive samples amplified at all four loci, forming a single multilocus genotype (MLG). This study contributes to a deeper understanding of E. bieneusi in dogs, which provides critical data for the development of targeted control strategies in Fujian province. Full article
(This article belongs to the Special Issue Parasite Epidemiology and Molecular Identification in Wild, Domestic, and Companion Animals: 2nd Edition)
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11 pages, 15733 KB  
Article
Considerations on the Life Cycle of Laminosioptes cysticola (Vizioli, 1870) Based on a Natural Infestation in Two Laying Hens
by Iolanda Moretta, Simona Principato, Giuseppe Giglia, Elvio Lepri and Mario Antonello Principato
Animals 2025, 15(14), 2024; https://doi.org/10.3390/ani15142024 - 9 Jul 2025
Cited by 1 | Viewed by 980
Abstract
Laminosioptes cysticola (Vizioli, 1870), a tissue-dwelling mite responsible for nodular acariasis in birds, was identified from two hens reared in a rural backyard flock in Umbria, Italy. Adult mites were found in the subcutaneous tissue and on the serosal surface of various internal [...] Read more.
Laminosioptes cysticola (Vizioli, 1870), a tissue-dwelling mite responsible for nodular acariasis in birds, was identified from two hens reared in a rural backyard flock in Umbria, Italy. Adult mites were found in the subcutaneous tissue and on the serosal surface of various internal organs. Larval and first- and second-stage nymphal forms were observed beneath the skin and near the trachea and esophageal serosa. By comparing the existing literature with that reported in the present study, we propose a hypothetical reconstruction of the parasite’s life cycle. It is postulated that the entry of L. cysticola occurs through the cervical skin, where adults mate and larviparous females give birth to larvae. These larvae migrate into the loose connective tissues surrounding the trachea and esophagus, where they develop into nymphs. The immature forms then progress along the esophagus and trachea to reach the thoracic and abdominal cavities, colonizing the serosal surfaces of visceral organs. It remains unclear whether, or how, the mites return to the subcutaneous tissues to complete their maturation. Senescent specimens degenerate within the subcutis, where they are encased by a granulomatous inflammatory reaction that leads to the formation of characteristic calcified nodules. Full article
(This article belongs to the Special Issue Parasite Epidemiology and Molecular Identification in Wild, Domestic, and Companion Animals: 2nd Edition)
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10 pages, 1853 KB  
Article
Genetic Diversity in the Diminazene Resistance-Associated P2 Adenosine Transporter-1 (AT-1) Gene of Trypanosoma evansi
by Shoaib Ashraf, Ghulam Yasein, Qasim Ali, Kiran Afshan, Martha Betson, Neil Sargison and Umer Chaudhry
Animals 2025, 15(5), 756; https://doi.org/10.3390/ani15050756 - 6 Mar 2025
Cited by 1 | Viewed by 1300
Abstract
Trypanosomes are parasitic protozoa that cause severe diseases in humans and animals. The most important species of Trypanosmes include Trypanosoma evansi and Trypanosoma brucei gambiense. The most well-known human diseases are sleeping sickness in Africa and Chagas disease in South America. The [...] Read more.
Trypanosomes are parasitic protozoa that cause severe diseases in humans and animals. The most important species of Trypanosmes include Trypanosoma evansi and Trypanosoma brucei gambiense. The most well-known human diseases are sleeping sickness in Africa and Chagas disease in South America. The most identified animal diseases include Nagana in the African tsetse fly belt and Surra in South Asia, North Africa, and the Middle East. Surra is caused by Trypanosoma evansi. Diminazene resistance is an emerging threat caused by T. evansi infecting animals. The underlying mechanism of diminazene resistance is poorly understood. Trypanosoma brucei gambiense causes African sleeping sickness. The development of diminazene resistance in Trypanosoma brucei gambiense is associated with the alterations in the corresponding P2 adenosine transporter-1 (AT-1) gene. In the present study, by extrapolating the findings from Trypanosoma brucei gambiense, we analyzed genetic diversity in the P2 adenosine transporter-1 gene (AT-1) from T. evansi to explore a potential link between the presence of mutations in this locus and diminazene treatment in ruminants. We examined T. evansi-infected blood samples collected from goats, sheep, camels, buffalo, and cattle in seven known endemic regions of the Punjab province of Pakistan. Heterozygosity (He) indices indicated a high level of genetic diversity between seven T. evansi field isolates that had resistance-type mutations at codons 178E/S, 239Y/A/E, and 286S/H/I/D/T of the P2 adenosine transporter-1 (AT-1) locus. A low level of genetic diversity was observed in 19 T. evansi field isolates with susceptible-type mutations at codons A178, G181, D239, and N286 of the P2 adenosine transporter-1 (AT-1) locus. Our results on T. evansi warrant further functional studies to explore the relationship between diminazene resistance and the mutations in AT-1. Full article
(This article belongs to the Special Issue Parasite Epidemiology and Molecular Identification in Wild, Domestic, and Companion Animals: 2nd Edition)
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