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Gram-stained touch impression of spleen, redtail shark (Epalzeorhynchus bicolor)
rt-shark-spleen-gram-60x-petty-sized
Gram-stained touch impression of spleen, redtail shark (Epalzeorhynchus bicolor)

    Photomicrograph of a touch impression of spleen from from a redtail shark (Epalzeorhynchus bicolor) revealing numerous gram-positive cocci. Streptococcus infection was suspected at necropsy. Gram stain; original magnification, 600×.

Courtesy of Dr. Denise Petty.

In these topics
Bacterial Diseases of Fish