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Prior infection with Bordetella bronchiseptica increases nasal colonization by Haemophilus parasuis in swine

The objective of this study was to determine whether Bordetella bronchiseptica would predispose to colonization or disease with Haemophilus parasuis. Three experiments were completed. In the first experiment, three groups of pigs (10 pigs/group) were inoculated intranasally with either B. bronchisep... Full description

Journal Title: Veterinary microbiology 2004, Vol.99, pp.75-78
Main Author: Brockmeier , Susan L.
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: AGRIS (Food and Agriculture Organization of the United Nations)
ID: ISSN: 0378-1135
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recordid: faoagrisUS201400078491
title: Prior infection with Bordetella bronchiseptica increases nasal colonization by Haemophilus parasuis in swine
format: Article
creator:
  • Brockmeier , Susan L.
subjects:
  • Bordetella Bronchiseptica
  • Haemophilus Parasuis
  • Nose
  • Swine
ispartof: Veterinary microbiology, 2004, Vol.99, pp.75-78
description: The objective of this study was to determine whether Bordetella bronchiseptica would predispose to colonization or disease with Haemophilus parasuis. Three experiments were completed. In the first experiment, three groups of pigs (10 pigs/group) were inoculated intranasally with either B. bronchiseptica, H. parasuis, or with B. bronchiseptica followed by H. parasuis 1 week later. A fourth group of 10 pigs served as a non-infected control group. The second experiment was like the first, except that there were only five pigs per experimental group. The third experiment consisted of only two groups (10 pigs/group), one of which was inoculated intranasally with H. parasuis, whereas the other was inoculated with B. bronchiseptica followed by H. parasuis 1 week later. Pigs were necropsied 1–2 weeks after inoculation with H. parasuis. Mean nasal colonization by H. parasuis was significantly higher in the coinfected groups compared to the groups infected with H. parasuis alone. Pneumonia was present in 9/25 pigs coinfected with B. bronchiseptica and H. parasuis, 5/25 pigs infected with H. parasuis alone, 1/15 pigs infected with B. bronchiseptica alone, and in none of the pigs in the non-inoculated groups. Thus, B. bronchiseptica increased colonization of the upper respiratory tract with H. parasuis. ; Includes references ; p. 75-78.
language: eng
source: AGRIS (Food and Agriculture Organization of the United Nations)
identifier: ISSN: 0378-1135
fulltext: fulltext
issn:
  • 03781135
  • 0378-1135
url: Link


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titlePrior infection with Bordetella bronchiseptica increases nasal colonization by Haemophilus parasuis in swine
creatorBrockmeier , Susan L.
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identifierISSN: 0378-1135
subjectBordetella Bronchiseptica ; Haemophilus Parasuis ; Nose ; Swine
descriptionThe objective of this study was to determine whether Bordetella bronchiseptica would predispose to colonization or disease with Haemophilus parasuis. Three experiments were completed. In the first experiment, three groups of pigs (10 pigs/group) were inoculated intranasally with either B. bronchiseptica, H. parasuis, or with B. bronchiseptica followed by H. parasuis 1 week later. A fourth group of 10 pigs served as a non-infected control group. The second experiment was like the first, except that there were only five pigs per experimental group. The third experiment consisted of only two groups (10 pigs/group), one of which was inoculated intranasally with H. parasuis, whereas the other was inoculated with B. bronchiseptica followed by H. parasuis 1 week later. Pigs were necropsied 1–2 weeks after inoculation with H. parasuis. Mean nasal colonization by H. parasuis was significantly higher in the coinfected groups compared to the groups infected with H. parasuis alone. Pneumonia was present in 9/25 pigs coinfected with B. bronchiseptica and H. parasuis, 5/25 pigs infected with H. parasuis alone, 1/15 pigs infected with B. bronchiseptica alone, and in none of the pigs in the non-inoculated groups. Thus, B. bronchiseptica increased colonization of the upper respiratory tract with H. parasuis. ; Includes references ; p. 75-78.
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abstractThe objective of this study was to determine whether Bordetella bronchiseptica would predispose to colonization or disease with Haemophilus parasuis. Three experiments were completed. In the first experiment, three groups of pigs (10 pigs/group) were inoculated intranasally with either B. bronchiseptica, H. parasuis, or with B. bronchiseptica followed by H. parasuis 1 week later. A fourth group of 10 pigs served as a non-infected control group. The second experiment was like the first, except that there were only five pigs per experimental group. The third experiment consisted of only two groups (10 pigs/group), one of which was inoculated intranasally with H. parasuis, whereas the other was inoculated with B. bronchiseptica followed by H. parasuis 1 week later. Pigs were necropsied 1–2 weeks after inoculation with H. parasuis. Mean nasal colonization by H. parasuis was significantly higher in the coinfected groups compared to the groups infected with H. parasuis alone. Pneumonia was present in 9/25 pigs coinfected with B. bronchiseptica and H. parasuis, 5/25 pigs infected with H. parasuis alone, 1/15 pigs infected with B. bronchiseptica alone, and in none of the pigs in the non-inoculated groups. Thus, B. bronchiseptica increased colonization of the upper respiratory tract with H. parasuis.