Aerosol Transmission of Pasteurella multocida in Turkeys

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Abstract
In 3 incidents, uninoculated turkeys separated from P. multocida-inoculated turkeys died of fowl cholera; apparently the pathogen was transmitted by aerosol through the circulating air. Uninoculated and inoculated turkeys were separated by a solid partition and wire netting, and were handled separately. Turkeys were inoculated with a highly virulent strain of P. multocida, which induced the pulmonary form of fowl cholera. In 4 of the 5 uninoculated turkeys that died, pneumonia was the principal lesion. In 2 of these turkeys, which were bled 1 day before death while still alert, the plasma corticosterone concentration had increased markedly.