Fig. 3. Microscopy of the skin of a fire salamander that died due to infection with
B. salamandrivorans.(A) Immunohistochemical staining of a5-μm skin section. Intracellular colonial thalli abound throughout all epidermal cell layers and are associated with erosive lesions. (Scale bar, 20 μm.) (B)Transmission electron microscopy picture of an intracellular colonial thallus of B. salamandrivorans inside a keratinocyte (Scale bar, 4 μm.)