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Nguyen YTH, Nguyen LAT, VAN Dong H, Duong HD, Yoshida A. Molecular identification of sparganum of Spirometra mansoni isolated from the abdominal cavity of a domestic cat in Vietnam. J Vet Med Sci 2024; 86:96-100. [PMID: 38030282 PMCID: PMC10849862 DOI: 10.1292/jvms.23-0236] [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: 06/09/2023] [Accepted: 11/05/2023] [Indexed: 12/01/2023] Open
Abstract
Cats normally play a role of the definitive host in which the plerocercoid (sparganum), the second larval form of Spirometra spp., develops into an adult in the intestines. However, some cases of cats with visceral or subcutaneous sparganosis were sporadically reported worldwide. We herein documented the discovery of a sparganum in abdominal cavity of a domestic cat during a surgery of dystocia. The larva was molecularly identified as Spirometra mansoni, belonging to Type I, that was recently misidentified to be S. erinaceieuropaei in several Asian countries. This is the first report for sparganum of S. mansoni in the cat. The future study is necessary to provide further insights into the species of Spirometra causing sparganosis and spirometrosis in humans and other animals.
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Affiliation(s)
- Yen Thi Hoang Nguyen
- Department of Parasitology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Ha Noi, Vietnam
- Department of Public Health, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Ha Noi, Vietnam
| | - Lan Anh Thi Nguyen
- Department of Parasitology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Ha Noi, Vietnam
| | - Hieu VAN Dong
- Department of Public Health, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Ha Noi, Vietnam
| | - Hieu Duc Duong
- Department of Parasitology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Ha Noi, Vietnam
| | - Ayako Yoshida
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
- Centre for Animal Disease Control (CADIC), University of Miyazaki, Miyazaki, Japan
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Tran GTH, Sultan S, Osman N, Hassan MI, VAN Dong H, Dao TD, Omatsu T, Katayama Y, Mizutani T, Takeda Y, Ogawa H, Imai K. Molecular characterization of full genome sequences of Newcastle disease viruses circulating among vaccinated chickens in Egypt during 2011-2013. J Vet Med Sci 2020; 82:809-816. [PMID: 32307343 PMCID: PMC7324829 DOI: 10.1292/jvms.19-0623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Although intensive vaccination programs have been implemented, Newcastle disease (ND)
outbreaks, accompanied by severe economic losses, are still reported in Egypt. The genetic
characterization of ND virus (NDV) strains isolated from ND-vaccinated chicken flocks
provides essential information for improving ND control strategies. Therefore, here, 38
NDV strains were isolated and identified from outbreaks among vaccinated flocks of broiler
chickens located in the provinces of Qena, Luxor, and Aswan of Upper Egypt during
2011–2013. The investigated broiler chicken flocks (aged 28 to 40 days) had high mortality
rates of up to 80%. All NDV isolates were genetically analyzed using next-generation DNA
sequencing. From these isolates, 10 representative NDV strains were selected for further
genetic analyses. Phylogenetic analysis of full-length coding genes revealed that the
Egyptian NDV isolates belonged to a single sub-genotype, VII.1.1. These isolates were
phylogenetically distant from the vaccine strains, including La Sota or Clone 30 (genotype
II), which have been commonly used to vaccinate chicken flocks. Amino acid substitution
K78R was observed in the neutralizing epitopes of the F proteins; whereas several
mutations were found in the neutralizing epitopes of the hemagglutinin-neuraminidase
proteins, notably, E347K. Overall, our results suggested that the occurrence of
neutralizing epitope variants may be one of potential reasons for ND outbreaks. Further
studies are needed to determine the protective effect of current vaccines against
circulating virulent NDV strains.
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Affiliation(s)
- Giang Thi Huong Tran
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan.,United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan.,Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Trau Quy Town, Gia Lam District, Hanoi, Vietnam
| | - Serageldeen Sultan
- Department of Microbiology, Virology Division, Faculty of Veterinary Medicine, South Valley University, 83523, Qena, Egypt
| | - Nabila Osman
- Department of Poultry Diseases, Faculty of Veterinary Medicine, South Valley University, 83523, Qena, Egypt
| | - Mohamed Ismail Hassan
- Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, 83911, Luxor, Egypt
| | - Hieu VAN Dong
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan.,United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan.,Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Trau Quy Town, Gia Lam District, Hanoi, Vietnam
| | - Tung Duy Dao
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan.,National Institute of Veterinary Research, 86 Truong Chinh, Dong Da, Hanoi, Vietnam
| | - Tsutomu Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Yukie Katayama
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
| | - Yohei Takeda
- Research Center for Global Agromedicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Haruko Ogawa
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan.,United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
| | - Kunitoshi Imai
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido 080-8555, Japan
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