Case Report: PDF OnlySilent but Deadly Legionella maceachernii Causing Culture-Negative Bioprosthetic Mitral Valve Endocarditis Complicated by StrokeKalunian, Anne ACNP-BC, CCRN; Salas, Natalie Mariam MBBCHAuthor Information From the Division of Infectious Disease, Department of Internal Medicine, University of New Mexico Hospital Health Science Center, Albuquerque, NM. Correspondence to: Natalie Mariam Salas, MBBCH, MSC10-5550 1, University of New Mexico, Albuquerque, New Mexico 87131. E-mail: email@example.com. The authors have no funding or conflicts of interest to disclose. Infectious Diseases in Clinical Practice: May 18, 2020 - Volume Publish Ahead of Print - Issue - doi: 10.1097/IPC.0000000000000857 Buy PAP Metrics Abstract Legionella species are a rare cause of culture-negative endocarditis. We report the first case of bioprosthetic valve endocarditis due to Legionella maceachernii. This case highlights the importance of the use of DNA target sequencing to identify the cause of culture-negative endocarditis, as standard empiric therapy would not have covered the identified organism. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.