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Liu Q, Liu L, Meng YK, Wang C, Gao Y, Zheng FG, Ma HL. Serological evidence of bovine viral diarrhea virus and peste des petits ruminants virus infection in alpacas (Vicugna pacos) in Shanxi Province, northern China. Trop Anim Health Prod 2021; 53:299. [PMID: 33939008 DOI: 10.1007/s11250-021-02746-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
Bovine viral diarrhea virus (BVDV) and peste des petits ruminants virus (PPRV) are two important pathogens associated with a variety of disease syndromes that result in substantial financial losses in animal husbandry. This study was performed to assess the seroprevalence of antibodies to BVDV and PPRV among alpacas raised in Shanxi Province of northern China. Serum samples were obtained from 246 alpacas in Taiyuan (n=182), Xinzhou (n=31), and Jinzhong cities (n=33) of Shanxi Province, and serological testing was carried out using the competitive enzyme-linked immunosorbent assay. Overall seroprevalence to BVDV was 3.25% (95% CI 1.03-5.47), and seropositive alpacas were found only in Taiyuan City. The overall PPRV seroprevalence in alpacas was 28.86% (95% CI 23.20-34.52). While no PPRV-seropositive alpacas were found in Xinzhou City, the seroprevalence of PPRV was 90.91% (95% CI 81.10-100.72) in Jinzhong City and 22.53% (95% CI 16.46-28.60) in Taiyuan City, respectively, which showed a statistically significant difference. To our knowledge, the present work is the first report on seroprevalence of BVDV and PPRV in alpacas in China, which provides baseline information for the control of infection.
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Affiliation(s)
- Qing Liu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Lu Liu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Yu-Kai Meng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Chen Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Yu Gao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Fu-Guo Zheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China
| | - Hai-Li Ma
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, 030801, People's Republic of China.
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Gao WW, Ma YT, Ma YY, Li RL, Li J, Zheng FG, Zheng WB, Liu Q, Zhu XQ. First report of Eimeria and Entamoeba infection in alpacas (Vicugna pacos) in Shanxi Province, northern China. Parasitol Res 2021; 120:2031-2035. [PMID: 33884491 DOI: 10.1007/s00436-021-07157-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/06/2021] [Indexed: 11/29/2022]
Abstract
Intestinal protozoa Eimeria and Entamoeba can infect many animal species including alpacas. However, data on the prevalence and pathogenicity of species of the two genera Eimeria and Entamoeba in alpacas in China is scarce. The current study was carried out to investigate the prevalence of Eimeria and Entamoeba in alpacas in two cities (Taiyuan and Xinzhou) in Shanxi Province, northern China, using PCR-based approaches. Eimeria spp. were only found in Taiyuan city, and the overall prevalence was 1.64%. All samples collected from male alpacas were PCR-negative for Eimeria. Four Eimeria-positive samples were tested positive as Eimeria lamae. The molecular prevalence of Entamoeba in alpacas was 18.03% (66/366), including 16.39% (50/305) in alpacas from Taiyuan city and 26.23% (16/61) from Xinzhou city, respectively. The Entamoeba prevalence in male alpacas (25.00%) was significantly higher than that in female alpacas (15.69%). Entamoeba bovis was the predominant species, and no Entamoeba histolytica infection was detected. Nine unique SSU rRNA gene sequences of Entamoeba were obtained which formed a new cluster. The results showed that sex and location might be the risk factors associated with prevalence of Eimeria spp., and sex might be the risk factor associated with prevalence of Entamoeba spp.. This is the first report of Entamoeba in alpacas worldwide. These findings expand our understanding of the prevalence and genetic diversity of Eimeria and Entamoeba in alpacas.
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Affiliation(s)
- Wen-Wei Gao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China
| | - Ye-Ting Ma
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China.,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Yuan-Yuan Ma
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Run-Li Li
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China
| | - Jin Li
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China
| | - Fu-Guo Zheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China
| | - Wen-Bin Zheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China
| | - Qing Liu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China
| | - Xing-Quan Zhu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, People's Republic of China. .,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China. .,Key Laboratory of Veterinary Public Health of Higher Education of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan Province, 650201, People's Republic of China.
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Li J, Ma YT, Liang QL, Li RL, Zheng FG, Liu Q, Zhu XQ, Gao WW. Serological evidence of Toxoplasma gondii and Chlamydia infection in alpacas (Vicugna pacos) in Shanxi Province, northern China. Microb Pathog 2020; 149:104399. [PMID: 32693119 DOI: 10.1016/j.micpath.2020.104399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 03/28/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 11/18/2022]
Abstract
Toxoplasma gondii, Neospora caninum, Chlamydia and bluetongue virus (BTV) are four important pathogens which can cause reproductive loss. The present study was conducted to estimate the seroprevalence of T. gondii, N. caninum, Chlamydia and BTV in alpacas in Shanxi Province, northern China. A total of 251 serum samples were collected from alpacas, and antibodies against T. gondii and Chlamydia were examined by the modified agglutination test (MAT) and indirect hemagglutination assay (IHA), respectively. Antibodies to N. caninum and BTV were determined by using the commercially available competitive enzyme-linked immunosorbent assay (cELISA) kits, respectively. The overall seroprevalence of T. gondii was 9.16% (95% CI 5.59-12.73) in the three sampled counties, of which, no T. gondii-seropositive samples were detected in alpacas in Fanshi County. Gender differences in the T. gondii seroprevalence were observed. The overall Chlamydia seroprevalence was 13.94% (95% CI: 9.66-18.22), and there was a statistically significant difference in Chlamydia seroprevalence in alpacas between the two counties, Jiexiu and Fanshi. All serum samples tested negative for N. caninum and BTV antibodies, respectively. To our knowledge, this is the first report of T. gondii and Chlamydia seroprevalence in alpacas in China, which provides baseline information for controlling T. gondii and Chlamydia infection in alpacas in China.
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Affiliation(s)
- Jin Li
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, PR China.
| | - Ye-Ting Ma
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, PR China; State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China.
| | - Qin-Li Liang
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China.
| | - Run-Li Li
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, PR China.
| | - Fu-Guo Zheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, PR China.
| | - Qing Liu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, PR China.
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, PR China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province, 225009, PR China.
| | - Wen-Wei Gao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province, 030801, PR China.
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