Pneumocystis jirovecii Pneumonia and Other Infections in Idiopathic Inflammatory Myositis.

In the past 5 years, a number of studies have been reported highlighting various infectious complications, which help us better understand their frequency and associated risk factors. In addition, data has been published on the potential harms of PJP prophylaxis, to better inform the risk/benefit of our decision-making. Infection remains a major contributor to morbidity and mortality in IIM. A better understanding of which patient subgroups are at risk for particular infections will inform optimal management strategies.