Journal article
Demonstration of airborne transmission of Actinobacillus pleuropneumoniae serotype 2 between simulated pig units located at close range
Bacteriology & Pathology, Division of Veterinary Diagnostics and Research, National Veterinary Institute, Technical University of Denmark1
Division of Veterinary Diagnostics and Research, National Veterinary Institute, Technical University of Denmark2
National Veterinary Institute, Technical University of Denmark3
Section for Veterinary Diagnostics, Division of Veterinary Diagnostics and Research, National Veterinary Institute, Technical University of Denmark4
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).
Language: | English |
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Year: | 2004 |
Pages: | 243-249 |
ISSN: | 18732542 and 03781135 |
Types: | Journal article |
DOI: | 10.1016/j.vetmic.2003.10.026 |
Actinobacillus pleuropneumoniae airborne transmission clinical observation pig-bacteria serology
Actinobacillus Infections Air Microbiology Air Movements Airborne transmission Animals Antibodies, Bacterial Clinical observation Enzyme-Linked Immunosorbent Assay Lung Palatine Tonsil Pig-bacteria Pleuropneumonia Random Allocation Serology Specific Pathogen-Free Organisms Swine Swine Diseases