<i >Rhodococcus equi</i> pulmonary infection, foal

Rhodococcus equi pulmonary infection, foal

Cocci or rodlike pleomorphic intracellular gram-positive organisms, compatible with R equi pulmonary infection, in an alveolar macrophage (arrow) of a foal (Gram stain; 1,000X).

Courtesy of Dr. Márcio Garcia Ribeiro.