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Hu B, Wang J, Wang Y, Li Y, Wang B, Xiang C, Xing Y, Han S, Yuan G, He H. The First Report of Sphaerirostris picae Infection in the Oriental Magpie ( Pica serica) in Beijing, China. Vector Borne Zoonotic Dis 2024. [PMID: 39263731 DOI: 10.1089/vbz.2023.0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2024] Open
Abstract
Background: Sphaerirostris picae is a parasitic species known for its ability to infect and transmit between hosts in the gastrointestinal tracts of wild avian species. However, there is limited information on its presence and impact on urban avian populations, particularly in China. Materials and Methods: In this study, morphological observations were conducted to detect the presence of Sphaerirostris sp. within the intestinal tract of the Oriental Magpie (Pica serica) collected in Beijing, China. Further confirmation of the parasite's identity was achieved through phylogenetic analysis using COX1 gene sequencing to compare with previously documented Sphaerirostris picae isolates. Results: The morphological and molecular analyses confirmed the presence of Sphaerirostris picae in the Oriental Magpie. Phylogenetic analysis indicated a close relationship with known Sphaerirostris picae isolates. This represents the first reported case of Sphaerirostris picae infection in magpies from Beijing, China. Conclusion: The findings highlight the potential health hazards posed by Sphaerirostris picae to urban avian populations and public health. The study suggests that additional research and surveillance efforts are necessary to better understand the risks associated with this parasite and to develop effective mitigation strategies.
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Affiliation(s)
- Bin Hu
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
- Henan Institute of Science and Technology, Xinxiang, China
- School of Life Sciences, Henan University, Kaifeng, China
| | - Jiamin Wang
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Ye Wang
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Yi Li
- Hebei Agricultural University, Baoding, China
| | - Bo Wang
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Chen Xiang
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Yanan Xing
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Shuyi Han
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Guohui Yuan
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
| | - Hongxuan He
- National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Sciences. Beijing, China
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Complete Mitochondrial Genome of Contracaecum sp. (Nematoda: Ascarididae) from night herons in China. J Nematol 2022; 54:20220048. [DOI: 10.2478/jofnem-2022-0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Indexed: 11/06/2022] Open
Abstract
Abstract
Contracaecum species are zooparasitic anisakid nematodes and occur in gastrointestinal tracts of vertebrate/invertebrate animals, including humans, causing gastrointestinal pain, diarrhea, and increasingly severe vomiting. Although the complete mitochondrial (mt) genome (mitogenome) of Contracaecum sp. isolated from night herons in Beijing has been reported, the detailed information about this mt sequence is still puzzling. In the present study, we described the detailed characteristics across the complete mt DNA of Contracaecum sp., which includes 36 genes consisting of 12 protein genes, 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs), and 2 noncoding regions (NCRs), and all genes have the same orientation of transcription. The AT content in the complete mitogenome of Contracaecum sp. was 72.2%, and it was the least value (66.7%) in the cox1 gene but was the highest rate (84.1%) in NCRs. The highest nucleotide diversity (Pi) among the genus Contracaecum was nad4 (0.190) and the least was cox1 (0.125), which indicates that nad4 might have the potential ability as useful markers to detect cryptic species in the genus Contracaecum or subspecies. Based on the maximum likelihood (ML) and Bayesian inference (BI) computational algorithms within subfamilies Ascaridoidea and Heterakoidea, the results supported that Contracaecum sp. was a new species and the family Ascaridiidae was paraphyletic. The complete mitogenome sequence of Contracaecum sp. supported a clear recognition of Contracaecum species and provided the potential existence of cryptic species in the genus Contracaecum. Our findings would better contribute to the surveillance, molecular epidemiology, and control of Contracaecum.
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Morales Martínez KA, Muñoz García C, Figueroa Delgado A, Chávez Güitrón L, Osorio Saravia D, Saavedra Montañez M, Martínez Maya JJ, Rubio JM, Villalobos N. Parasite identification in mullet fish (Mugil curema) from Chautengo Lagoon, Guerrero, Mexico, based on morphology and molecular analysis. Exp Parasitol 2022; 240:108335. [PMID: 35932907 DOI: 10.1016/j.exppara.2022.108335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 06/01/2022] [Accepted: 07/12/2022] [Indexed: 11/04/2022]
Abstract
Parasite identification is crucial in areas where no sanitary inspection is conducted on fish, especially considering that parasitic zoonoses like anisakiasis and gnathostomiasis can pose a risk for human health. In this study, parasites in mullet fish (Mugil curema) from the Chautengo Lagoon, Guerrero, Mexico, were identified by morphological and molecular methods. A total of 122 specimens weighing 317 ± 51.25 g and 19.3 ± 1.14 cm in length were assessed. Their helminthofauna was classified by measuring internal structures, total length, and maximum width; a morphometric index was also calculated for larval stages. The prevalence of parasitosis in these mullets was 91.8%, with a mean infection intensity of 4.1. The acanthocephalan Floridosentis mugilis was identified by its external and internal structures. The nematodes found were of the Anisakidae family in stage 3 (L3), with a morphology consistent with Contracaecum sp. To determine the species, the ITS ribosomal gene and the mitochondrial genes COX2 and rrnS were molecularly characterized by PCR; then, they were aligned by CLUSTAL W, and a phylogenetic tree was obtained. In this analysis, the sequences were compared with those reported in GenBank. A total of 460 parasites were studied, 283 of which were nematodes (61.5%) and 177 were acanthocephalans (38.5%). The sequences of seven nematodes showed 99% homology with each other, and thus they formed an independent branch within the Contracaecum sp. group. This is the first report identifying Contracaecum multipapillatum in mullet fish in the Chautengo Lagoon, Guerrero.
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Affiliation(s)
- Karla Azucena Morales Martínez
- Universidad Tecnológica de Tecámac UTTEC. Km 37.5 Ctra. Fed. México-Pachuca S/N, C.P. 55740, Col. Sierra Hermosa, Tecámac, Estado de México, Mexico
| | - Carlota Muñoz García
- Parasitology Department. National Microbiology Center, Instituto de Salud Carlos III. Madrid, Ctra. Majadahonda Pozuelo Km 2 Majadahonda, 28220. Madrid, Spain
| | - Alfredo Figueroa Delgado
- Universidad Tecnológica del Mar del Estado de Guerrero. Avenida Universidad S/N, Barra de Tecoanapa, Marquelia, Guerrero, 41937, Mexico
| | - Lorena Chávez Güitrón
- Universidad Tecnológica de Tecámac UTTEC. Km 37.5 Ctra. Fed. México-Pachuca S/N, C.P. 55740, Col. Sierra Hermosa, Tecámac, Estado de México, Mexico
| | - David Osorio Saravia
- Colegio de Ciencias y Humanidades Plantel Oriente. Av. Canal de San Juan Esq. Sur 24, Col. Tepalcates, CDMX, 09210, Mexico
| | - Manuel Saavedra Montañez
- Departamento de Microbiología e Inmunología. Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México. Circuito Exterior S/N, Ciudad Universitaria, CDMX, 04510, Mexico
| | - José Juan Martínez Maya
- Departamento de Medicina Preventiva y Salud Pública. Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México. Circuito Exterior S/N, Ciudad Universitaria, CDMX, 04510, Mexico
| | - José M Rubio
- Parasitology Department. National Microbiology Center, Instituto de Salud Carlos III. Madrid, Ctra. Majadahonda Pozuelo Km 2 Majadahonda, 28220. Madrid, Spain
| | - Nelly Villalobos
- Departamento de Patología. Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México. Circuito Exterior S/N, Ciudad Universitaria, CDMX, 04510, Mexico.
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