The aerobic actinomycetes are a distinct group of microorganisms initially classified as fungi since they grow as branching filaments and morphologically resemble these organisms. Their taxonomy was ...

Nocardiosis is an infection caused by a germ called the Nocardia bacteria. Nocardia germs grow in soil or standing water all over the world. Nocardiosis usually affects your lungs or skin. But if ...

A 63-year-old woman with a history of non-Hodgkin's lymphoma that had been treated 25 years previously, as well as a history of hypertension, hypercholesterolemia, transient ischemic attack, and acute ...

Immunodeficient or iatrogenically immunosuppressed patients are at increased risk of infection by unusual micro-organisms and these may involve the eye. An illustrative case of sub-retinal abscess is ...