Counts of colony forming units (cfu) present in samples derived from the bronchoalveolar space (BAL – Bronchoalveolar lavage fluid) and from lung tissue dissected at necropsy.

Counts of colony forming units (cfu) present in samples derived from the bronchoalveolar space (BAL – Bronchoalveolar lavage fluid) and from lung tissue dissected at necropsy from lung segments subjected to the treatment protocols as specified in table 1. Where the cut surface of lung segments demonstrated areas of gross abnormality, then these areas were specifically sampled and designated in the table as “Lesion”. “Non-lesion” lung tissue had no gross evidence of abnormality. Bronchoalveolar cfu counts are expressed per millilitre of recovered bronchoalveolar lavage fluid, and tissue cfu counts are expressed per gram of tissue.