Figure 3From: Pulmonary infection by Rhodococcus equi presenting with positive Ziehl-Neelsen stain in a patient with human immunodeficiency virus: a case report Subculture of positive blood culture vial onto solid media. Colonies are irregularly round, smooth, semitransparent, and mucoid, with a salmon-pink color that appeared on the fourth day of incubation at 30°C.Back to article page