During June 2012-September 2014, we tested patients with severe respiratory illness for Legionella spp. infection and conducted a retrospective epidemiologic investigation. Of 1,805 patients tested, Legionella was detected in samples of 21 (1.2%); most were adults who had HIV or tuberculosis infections and were inappropriately treated for Legionella.
Keywords: Legionella spp.; Legionellosis; Legionnaires’ disease; South Africa; bacteria; legionella; pneumonia; respiratory infections.