High pathogenicity of a Chinese NADC34-like PRRSV on pigs
NADC34-like porcine reproductive and respiratory syndrome virus (PRRSV) has been reported to be prevalent in China since 2018 and became one of the main epidemic strains in some areas of China. Yet, the pathogenicity of NADC34-like PRRSV tested by experimental infection has seldomly been investigated. In this study, we infected pigs with JS2021NADC34 PRRSV, a Chinese NADC34-like PRRSV isolated in Jiangsu province in 2021, to study the pathogenicity of this virus strain. Pigs infected with this virus had lasting fever and reduced body weight with high morbidity and mortality. Histopathological changes, including interstitial pneumonia, lymphocyte depletion, acute hemorrhage, and infiltration of neutrophils in the lymphoid tissues, were observed with the viral proteins detected by immunohistochemistry staining using PRRSV-specific antibody. These results suggested that JS2021NADC34 PRRSV is highly pathogenic to pigs. As it is the latest emerging PRRSV strain in China, the prevalence and pathogenicity of NADC34-like PRRSV need to be further investigated.
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American Society for Microbiology
2022-08-31
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Subjects: | swine, animal diseases, |
Online Access: | https://hdl.handle.net/10568/119982 https://doi.org/10.1128/spectrum.01541-22 |
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dig-cgspace-10568-1199822023-03-18T05:07:15Z High pathogenicity of a Chinese NADC34-like PRRSV on pigs Yuan, L. Zhu, Z. Fan, J. Liu, P. Li, Y. Li, Q. Sun, Z. Yu, X. Hu Suk Lee Tian, K. Li, X. swine animal diseases NADC34-like porcine reproductive and respiratory syndrome virus (PRRSV) has been reported to be prevalent in China since 2018 and became one of the main epidemic strains in some areas of China. Yet, the pathogenicity of NADC34-like PRRSV tested by experimental infection has seldomly been investigated. In this study, we infected pigs with JS2021NADC34 PRRSV, a Chinese NADC34-like PRRSV isolated in Jiangsu province in 2021, to study the pathogenicity of this virus strain. Pigs infected with this virus had lasting fever and reduced body weight with high morbidity and mortality. Histopathological changes, including interstitial pneumonia, lymphocyte depletion, acute hemorrhage, and infiltration of neutrophils in the lymphoid tissues, were observed with the viral proteins detected by immunohistochemistry staining using PRRSV-specific antibody. These results suggested that JS2021NADC34 PRRSV is highly pathogenic to pigs. As it is the latest emerging PRRSV strain in China, the prevalence and pathogenicity of NADC34-like PRRSV need to be further investigated. 2022-08-31 2022-06-30T11:07:03Z 2022-06-30T11:07:03Z Journal Article Yuan, L., Zhu, Z., Fan, J., Liu, P., Li, Y., Li, Q., Sun, Z., Yu, X., Hu Suk Lee, Tian, K. and Li, X. 2022. High pathogenicity of a Chinese NADC34-like PRRSV on pigs. Microbiology Spectrum 10(4): e01541-22. 2165-0497 https://hdl.handle.net/10568/119982 https://doi.org/10.1128/spectrum.01541-22 en CC-BY-4.0 Open Access e01541-22 American Society for Microbiology Microbiology Spectrum |
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swine animal diseases swine animal diseases Yuan, L. Zhu, Z. Fan, J. Liu, P. Li, Y. Li, Q. Sun, Z. Yu, X. Hu Suk Lee Tian, K. Li, X. High pathogenicity of a Chinese NADC34-like PRRSV on pigs |
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NADC34-like porcine reproductive and respiratory syndrome virus (PRRSV) has been reported to be prevalent in China since 2018 and became one of the main epidemic strains in some areas of China. Yet, the pathogenicity of NADC34-like PRRSV tested by experimental infection has seldomly been investigated. In this study, we infected pigs with JS2021NADC34 PRRSV, a Chinese NADC34-like PRRSV isolated in Jiangsu province in 2021, to study the pathogenicity of this virus strain. Pigs infected with this virus had lasting fever and reduced body weight with high morbidity and mortality. Histopathological changes, including interstitial pneumonia, lymphocyte depletion, acute hemorrhage, and infiltration of neutrophils in the lymphoid tissues, were observed with the viral proteins detected by immunohistochemistry staining using PRRSV-specific antibody. These results suggested that JS2021NADC34 PRRSV is highly pathogenic to pigs. As it is the latest emerging PRRSV strain in China, the prevalence and pathogenicity of NADC34-like PRRSV need to be further investigated. |
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Journal Article |
topic_facet |
swine animal diseases |
author |
Yuan, L. Zhu, Z. Fan, J. Liu, P. Li, Y. Li, Q. Sun, Z. Yu, X. Hu Suk Lee Tian, K. Li, X. |
author_facet |
Yuan, L. Zhu, Z. Fan, J. Liu, P. Li, Y. Li, Q. Sun, Z. Yu, X. Hu Suk Lee Tian, K. Li, X. |
author_sort |
Yuan, L. |
title |
High pathogenicity of a Chinese NADC34-like PRRSV on pigs |
title_short |
High pathogenicity of a Chinese NADC34-like PRRSV on pigs |
title_full |
High pathogenicity of a Chinese NADC34-like PRRSV on pigs |
title_fullStr |
High pathogenicity of a Chinese NADC34-like PRRSV on pigs |
title_full_unstemmed |
High pathogenicity of a Chinese NADC34-like PRRSV on pigs |
title_sort |
high pathogenicity of a chinese nadc34-like prrsv on pigs |
publisher |
American Society for Microbiology |
publishDate |
2022-08-31 |
url |
https://hdl.handle.net/10568/119982 https://doi.org/10.1128/spectrum.01541-22 |
work_keys_str_mv |
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