Figure 8From: Comparative studies on the pathogenicity and tissue distribution of three virulence variants of classical swine fever virus, two field isolates and one vaccine strain, with special regard to immunohistochemical investigationsTonsil. Experiment II, PID 4. In situ hybridisation. Tonsil. Experiment II, PID 4. Intense hybridisation signal for CSFV nucleic acid in the cytoplasm of tonsillar crypt epithelial cells. In situ hybridisation; DIG-labelled riboprobe. Magnification 675×.Back to article page