Fig. 2From: Lethal infection caused by Tetratrichomonas gallinarum in black swans (Cygnus atratus)Haematoxylin and eosin staining of the caecum (a) and the liver (b) of a dead black swans. ISH revealed the presence of T. gallinarum in the caecum (c) within the localizations as brown-stained cells. The signals of T. gallinarum probe in the liver was negative (d)Back to article page