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Zeng Y, Zhang H, Zhang H. Isolation, Identification, and Whole Genome Analysis of Chicken Infectious Anemia Virus in an Outbreak of Disease in Adult Layer Hens. Vet Sci 2023; 10:481. [PMID: 37505885 PMCID: PMC10386238 DOI: 10.3390/vetsci10070481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/10/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
Chicken infectious anemia (CIA) poses a significant threat to the chicken industry in China. Due to its non-specific symptoms, the disease is often overlooked. This study aimed to conduct a comprehensive analysis of the etiology and pathology of CIA in Guangxi Province, China. Three strains of the chicken infectious anemia virus (CIAV) were isolated from liver samples of diseased 20-week-old chickens. The complete genomes of these strains were sequenced, and experiments on specific pathogen-free (SPF) chicks revealed that the GX21121 strain exhibited high virulence. Histopathological examination of the deceased chickens showed liver cell necrosis, fibrous serous exudation, inflammatory cell infiltration, hemorrhage in liver tissues, and congestion in lung and renal tissues. Phylogenetic analysis of the genome revealed that the three strains had a close genetic relationship to the Heilongjiang wild-type strain (GenBank KY486144). The genetic evolution of their VP1 genes indicated that all three CIAV isolates belonged to genotype IIIc. In summary, this study demonstrated the genomic diversity of three CIAV strains in adult layer hens. The isolation and characterization of the GX21121 strain as a highly virulent isolate provide valuable information for further investigations into the etiology, molecular epidemiology, and viral evolution of CIAV.
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Affiliation(s)
- Yueyan Zeng
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
| | - Hui Zhang
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
- Key Laboratory of Veterinary Medicine, Universities in Sichuan, Chengdu 610093, China
| | - Huanrong Zhang
- College of Animal and Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
- Key Laboratory of Veterinary Medicine, Universities in Sichuan, Chengdu 610093, China
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Wu X, Kong J, Yao Z, Sun H, Liu Y, Wu Z, Liu J, Zhang H, Huang H, Wang J, Chen M, Zeng Y, Huang Y, Chen F, Xie Q, Zhang X. A new rapid and sensitive method for detecting chicken infectious anemia virus. Front Microbiol 2022; 13:994651. [PMID: 36246275 PMCID: PMC9558101 DOI: 10.3389/fmicb.2022.994651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/26/2022] [Indexed: 12/03/2022] Open
Abstract
Since the chicken infectious anemia virus (CIAV) was discovered in 1979, which has been reported as an economically significant and immunosuppressive poultry disease in the world. A novel clinical detection method for the prevention and control of CIAV in the poultry sector is urgently needed. Here, we established a real-time recombinase-aided amplification assay (RAA) for CIAV on-site with a rapid, highly sensitive, strongly specific, low-cost, and simple operational molecular diagnosis detection method. The primers and probe were developed using the CIAV VP2 gene sequence, which has a 117-bp specific band. This assay, which could be carried out at 41°C and completed in 30 min without cross-reactivity with other viruses, had the lowest detection limit of 10 copies of CIAV DNA molecules per reaction. Furthermore, the kappa value of this assay was 0.947, the sensitivity was 93.33%, and the specificity was 100% when compared to the real-time quantitative polymerase chain reaction assay (real-time qPCR). These results indicate that using a real-time RAA assay to detect CIAV on-site could be beneficial. In the future, the real-time RAA test may be a regular assay for the prevention and control of CIAV, as well as help the reduction of economic losses in the poultry business.
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Affiliation(s)
- Xiuhong Wu
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
| | - Jie Kong
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
| | - Ziqi Yao
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
| | - Hejing Sun
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
| | - Yuanjia Liu
- Department of Veterinary Medicine, College of Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Zhiqiang Wu
- Wen’s Group Academy, Wen’s Foodstuffs Group Co., Ltd, Yunfu, Xinxing, China
| | - Jiajia Liu
- Wen’s Group Academy, Wen’s Foodstuffs Group Co., Ltd, Yunfu, Xinxing, China
| | - Hao Zhang
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
| | - Haohua Huang
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
| | - Jin Wang
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
| | - Mengjun Chen
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
| | - Yichen Zeng
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
| | - Yinpeng Huang
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
| | - Feng Chen
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
| | - Qingmei Xie
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
- *Correspondence: Qingmei Xie,
| | - Xinheng Zhang
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou, China
- Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou, China
- South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou, China
- Xinheng Zhang,
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Occurrence and Phylogenetic Analysis of Avian Coronaviruses in Domestic Pigeons (Columba livia domestica) in Poland between 2016 and 2020. Pathogens 2022; 11:pathogens11060646. [PMID: 35745500 PMCID: PMC9230530 DOI: 10.3390/pathogens11060646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 12/04/2022] Open
Abstract
While disease control in racing pigeons and the potential role of pigeons as vectors transmitting viruses to poultry are of importance, there is still a paucity of data concerning the occurrence of coronaviruses in pigeons. In this study, 215 domestic pigeons were tested for the presence of coronaviral genetic material using the nested PCR method, which revealed 57 positive samples (26.51%). The difference in coronavirus prevalence between young and adult pigeons (34.34% and 19.83%, respectively) has been found statistically significant. In contrast, no statistically significant difference has been demonstrated between the prevalence in symptomatic and asymptomatic birds, leaving the influence of coronavirus presence on pigeon health uncertain. Phylogenetic analysis of the RdRp gene fragment allowed us to assign all the obtained strains to the Gammacoronavirus genus and Igacovirus subgenus. The phylogenetic tree plotted using the ML method revealed that those sequences formed a group most similar to pigeon coronavirus strains from China, Finland, and Poland, and to a single strain from a common starling from Poland, which suggests wide geographical distribution of the virus and its possible transmission between various species.
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