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Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015

BACKGROUND: Prior to the 1990s, P. multocida capsular serogroup A was the most prevalent in China, followed by serogroups B and D. Thirty years later, serogroup D became the most prevalent, followed by serogroups A and B. However, the P. multocida capsular serogroups currently circulating in China r...

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Autores principales: Liu, Huisheng, Zhao, Zhanqin, Xi, Xiaojian, Xue, Qiao, Long, Ta, Xue, Yun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5223352/
https://www.ncbi.nlm.nih.gov/pubmed/28078081
http://dx.doi.org/10.1186/s13620-016-0080-7
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author Liu, Huisheng
Zhao, Zhanqin
Xi, Xiaojian
Xue, Qiao
Long, Ta
Xue, Yun
author_facet Liu, Huisheng
Zhao, Zhanqin
Xi, Xiaojian
Xue, Qiao
Long, Ta
Xue, Yun
author_sort Liu, Huisheng
collection PubMed
description BACKGROUND: Prior to the 1990s, P. multocida capsular serogroup A was the most prevalent in China, followed by serogroups B and D. Thirty years later, serogroup D became the most prevalent, followed by serogroups A and B. However, the P. multocida capsular serogroups currently circulating in China remain unclear. Therefore, the aim of the present study was to provide an update on P. multocida serogroups isolated from diagnostic samples collected from clinically diseased pigs in Central and Eastern China from 2011 to 2015. RESULTS: Between February 2011 and October 2015, 296 isolates of Pasteurella multocida were collected from 3212 pigs with clinical respiratory disease in 12 provinces of China (isolation rate of 9.2%). Of the 296 collected isolates, 146 (49.3%) were P. multocida capsular type A, 141 (47.6%) were capsular type D, and one was capsular type B. Streptococcus suis (94/193; 48.7%), Haemophilus parasuis (76/193; 39.3%), Escherichia coli (53/193; 27.5%), and Bordetella bronchiseptica (26/193; 13.5%) were frequently isolated together with P. multocida. A total of 14 toxigenic P. multocida strains co-isolated with other pathogens from 32 cases of atrophic rhinitis were classified into serogroup D. The virulence of P. multocida capsular type A isolates was higher than that of capsular type D isolates based on LD(50) studies in mice. CONCLUSIONS: Over the past 5 years, P. multocida capsular type A was the most frequently isolated from diagnostic submissions in Central and Eastern China, followed by serogroups D and B.
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spelling pubmed-52233522017-01-11 Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015 Liu, Huisheng Zhao, Zhanqin Xi, Xiaojian Xue, Qiao Long, Ta Xue, Yun Ir Vet J Research BACKGROUND: Prior to the 1990s, P. multocida capsular serogroup A was the most prevalent in China, followed by serogroups B and D. Thirty years later, serogroup D became the most prevalent, followed by serogroups A and B. However, the P. multocida capsular serogroups currently circulating in China remain unclear. Therefore, the aim of the present study was to provide an update on P. multocida serogroups isolated from diagnostic samples collected from clinically diseased pigs in Central and Eastern China from 2011 to 2015. RESULTS: Between February 2011 and October 2015, 296 isolates of Pasteurella multocida were collected from 3212 pigs with clinical respiratory disease in 12 provinces of China (isolation rate of 9.2%). Of the 296 collected isolates, 146 (49.3%) were P. multocida capsular type A, 141 (47.6%) were capsular type D, and one was capsular type B. Streptococcus suis (94/193; 48.7%), Haemophilus parasuis (76/193; 39.3%), Escherichia coli (53/193; 27.5%), and Bordetella bronchiseptica (26/193; 13.5%) were frequently isolated together with P. multocida. A total of 14 toxigenic P. multocida strains co-isolated with other pathogens from 32 cases of atrophic rhinitis were classified into serogroup D. The virulence of P. multocida capsular type A isolates was higher than that of capsular type D isolates based on LD(50) studies in mice. CONCLUSIONS: Over the past 5 years, P. multocida capsular type A was the most frequently isolated from diagnostic submissions in Central and Eastern China, followed by serogroups D and B. BioMed Central 2017-01-10 /pmc/articles/PMC5223352/ /pubmed/28078081 http://dx.doi.org/10.1186/s13620-016-0080-7 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Liu, Huisheng
Zhao, Zhanqin
Xi, Xiaojian
Xue, Qiao
Long, Ta
Xue, Yun
Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015
title Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015
title_full Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015
title_fullStr Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015
title_full_unstemmed Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015
title_short Occurrence of Pasteurella multocida among pigs with respiratory disease in China between 2011 and 2015
title_sort occurrence of pasteurella multocida among pigs with respiratory disease in china between 2011 and 2015
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5223352/
https://www.ncbi.nlm.nih.gov/pubmed/28078081
http://dx.doi.org/10.1186/s13620-016-0080-7
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