Figure 3From: PR-39, a porcine host defence peptide, is prominent in mucosa and lymphatic tissue of the respiratory tract in healthy pigs and pigs infected with actinobacillus pleuropneumoniaePR-39 positive cells in the lumen of bronchi of pig 5 on day 21 after infection. A) Semiserial haematoxylin-eosin stained histological section. The morphology of cells in the lumen of bronchus resemble PMNs, bar 50 μm. B) PR-39 localization in the cytoplasm and nucleus of small cells in the lumen of a bronchus, bar 50 μm.Back to article page