Dientamoeba fragilis: a family cluster of disease associated with marked peripheral eosinophilia.

Dientamoeba fragilis has emerged as an important and underrecognized cause of gastrointestinal illness. We report a familial cluster of D. fragilis associated with marked peripheral eosinophilia and gastrointestinal symptoms.

Nocardia paucivorans--a cause of disseminated nocardiosis.

We describe a 53-year-old man without discernable immunocompromise who presented with cerebral and cutaneous dissemination of primary pulmonary Nocardia paucivorans infection. This report also identifies 32 other patients in our health area with clinical isolates of N. paucivorans over the last 20 years, extending the reported spectrum of disease caused by this organism.