Type 2 diabetes patient infected by soil-derived Legionella Longbeachae in China: A case report

<i>Legionella Ltongbeachae</i> is ubiquitously found in both aqueous environments and moist soils worldwide, sometimes causing severe pneumonia. <i>Legionella longbeachae</i> pneumonia can cause severe lower respiratory tract illness leading to fatal outcomes. But <i>Legionella longbeachae</i> is rarely reported in China. Here we present a case of <i>Legionella longbeachae</i> pneumonia detected by NGS in a 73-year-old woman, who was a farmer working in a vegetable greenhouse and was diagnosed as diabetes 2 before. The patient experienced severe chills and fever when she was transfer to our hospital. Anyway, the symptoms resolved after targeted anti-infection treatment and low-dose hormone therapies plus insulin treatment. Besides that, we reviewed the <i>Legionella longbeachae</i> pneumonia in China and type 2 diabetes is a possible risk factor that could facilitate Legionnaires' disease. The case reported herein may serve as a warning to public health and a cue for the successful management of diseases associated with <i>Legionella longbeachae</i>.