1
|
Chen K, Kong M, Liu J, Jiao J, Zeng Z, Shi L, Bu X, Yan Y, Chen Y, Gao R, Liu X, Wang X, Hu J, Hu S, Jiao X, Liu X, Gu M. Rapid differential detection of subtype H1 and H3 swine influenza viruses using a TaqMan-MGB-based duplex one-step real-time RT-PCR assay. Arch Virol 2021; 166:2217-2224. [PMID: 34091783 DOI: 10.1007/s00705-021-05127-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/17/2021] [Indexed: 10/21/2022]
Abstract
Swine influenza is an economically important respiratory disease in swine, but it also constantly poses a threat to human health. Therefore, developing rapid, sensitive, and efficient detection methods for swine influenza virus (SIV) is important. By aligning the haemagglutinin (HA) gene sequences of SIVs circulating in China over a 10-year period, an H1 primer-probe set targeting both Eurasian avian-like H1N1 (EA H1N1) and pandemic 2009 H1N1 ((H1N1)pdm09) lineages plus a H3 primer-probe set targeting the prevalent human-like H3N2 (HL H3N2) subtype were designed. Subsequently, a TaqMan-MGB-based duplex one-step real-time RT-PCR (RT-qPCR) assay was established and evaluated. The duplex RT-qPCR has a detection limit of 5 copies/μL of HA plasmid for EA H1N1, (H1N1)pdm09, and HL H3N2 subtype SIVs, and its overall detection sensitivity of 100% and specificity of 91.67% matches that of traditional virus isolation through chicken embryo inoculation using experimentally infected mouse lung samples. The method showed high repeatability both within run and between runs, and there was no cross-reactivity against several other porcine viruses that are commonly circulating in China. Furthermore, the duplex RT-qPCR method revealed a higher prevalence of subtype H1 than subtype H3 in 166 nasal swabs from pigs collected from one slaughterhouse between October and December 2019. This assay could be very helpful in the rapid differential detection and routine surveillance of EA H1N1, (H1N1)pdm09, and HL H3N2 SIVs in China.
Collapse
Affiliation(s)
- Kaibiao Chen
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Ming Kong
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Jiao Liu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Jun Jiao
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Zixiong Zeng
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Liwei Shi
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Xinxin Bu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Yayao Yan
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Yu Chen
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Ruyi Gao
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China
| | - Xiaowen Liu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Jiao Hu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Xinan Jiao
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, Yangzhou University, 48 East Wenhui Road, Yangzhou, 225009, Jiangsu, China. .,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China. .,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China.
| |
Collapse
|