Demonstration of airborne transmission of Actinobacillus pleuropneumoniae serotype 2 between simulated pig units located at close range

C.S. Kristensen, Øystein Angen, M. Andreasen, H. Takai, J.P. Nielsen, Sven Erik Lind Jorsal

    Research output: Contribution to journalJournal articleResearchpeer-review


    Airborne transmission of Actinobacillus pleuropneumoniae was studied as the percentage of air needed to establish airborne transmission from an infected pig unit into a neighbouring non-infected pig unit. The experiment was carried out in two containers constructed as pig units, placed 1 m apart and connected by pipes. By manipulating the air pressure in the two units, the amount of ventilation air transferred from the infected pigs (unit A) to the non-infected pigs (unit B) was controlled and measured. In three experiments, between 48 and 50 specific pathogen free-pigs were randomly assigned to each of the two units. In unit A, five pigs (experiment 1) or eight pigs (experiments 2 and 3) were inoculated with A. pleuropneumoniae serotype 2. In experiments 1 and 3, 10% of the air was transferred from unit A to B; in experiment 2, 70% of the air was transferred. In the non-infected unit (B), 36% of the pigs seroconverted during experiment 2 (70% air transfer), whereas none of the pigs seroconverted in experiments I and 3 (10% air transfer).
    Original languageEnglish
    JournalVeterinary Microbiology
    Issue number3-4
    Pages (from-to)243-249
    Publication statusPublished - 2004


    • clinical observation
    • Actinobacillus pleuropneumoniae
    • pig-bacteria
    • airborne transmission
    • serology

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