Survey of infectious agents involved in acute respiratory disease in finishing pigs

Outbreaks of respiratory disease constitute a major health problem in herds of finishing pigs and their aetiology often remains unclear. In this study, 16 outbreaks of respiratory disease with acute clinical signs in finishing pigs were investigated to determine which infectious agents were involved...

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Bibliographic Details
Published in:Veterinary record 1999-07, Vol.145 (5), p.123-129
Main Authors: Loeffen, W. L. A., Kamp, E. M., Stockhofe-Zurwieden, N., Van Nieuwstadt, A. P. K. M. I., Bongers, J. H., Hunneman, W. A., Elbers, A. R. W., Baars, J., Nell, T., Van Zijderveld, F. G.
Format: Article
Language:English
Subjects:
Actinobacillus Infections - epidemiology
Actinobacillus Infections - veterinary
Actinobacillus pleuropneumoniae - isolation & purification
Animals
bacteria
Data Collection
Disease Outbreaks - veterinary
disease surveys
etiology
finishing
ID Lelystad, Institute for Animal Science and Health
ID-Lelystad, Instituut voor Dierhouderij en Diergezondheid
infectious diseases
Influenza A virus - isolation & purification
Mycoplasmataceae
Orthomyxoviridae Infections - epidemiology
Orthomyxoviridae Infections - veterinary
outbreaks
respiratory tract diseases
Respiratory Tract Infections - microbiology
Respiratory Tract Infections - veterinary
Respiratory Tract Infections - virology
Swine
Swine Diseases - microbiology
Swine Diseases - virology
viruses
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Summary:Outbreaks of respiratory disease constitute a major health problem in herds of finishing pigs and their aetiology often remains unclear. In this study, 16 outbreaks of respiratory disease with acute clinical signs in finishing pigs were investigated to determine which infectious agents were involved. From each herd four diseased and two clinically healthy pigs were examined pathologically and for the presence of viruses, bacteria and mycoplasmas. In addition, paired blood samples from 10 groupmates of the diseased pigs were tested for antibodies against commonly known causal agents of respiratory disease. A clear diagnosis was possible in 12 of the 16 outbreaks. Seven were due to an infection with influenza virus and five were due to an infection with Actinobadllus pleuropneumoniae. A combination of influenza virus and A pleuropneumoniae may have caused one other outbreak, but no clear cause could be established for the other three outbreaks.
ISSN:0042-4900
2042-7670
DOI:10.1136/vr.145.5.123