Nocardia cyriacigeorgica: pulmonary infection in a patient with Basedow–Graves disease and a short review of reported cases

Nocardia species are aerobic and saprophytic actinomycetes found all around the world. They invade the human body from the environment via trauma and the respiratory tract, and cause cutaneous, pulmonary, and systemic nocardiosis in humans. There is no age, ethnic group, or geographic variation in nocardiosis caused by the different Nocardia species, and the male to female ratio for infection is 3 to 1.1 Nocardiosis is a rare infection and almost half of all cases are immunocompromised subjects.