Figure 5From: 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 pleuropneumoniaeImmunohistochemical demonstration of PR-39 positive cells in the tracheobronchial lymph node of pig 6 on day 21 after infection. A) Semiserial haematoxylin-eosin stained histological section, bar 50 μm. B) Large PR-39 positive cells are localized within the cortical and medullar parenchyma, to a lesser extent in intermediary and subcapsular sinus, but not within the secondary nodules, bar 50 μm.Back to article page