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A Hail Mary Diagnostic Success

Human Granulocytic Anaplasmosis

Dylewski, Joe MD*; Domingo, Marc-Christian MD, PhD; Thivierge, Karine PhD

Infectious Diseases in Clinical Practice: July 2019 - Volume 27 - Issue 4 - p 226–227
doi: 10.1097/IPC.0000000000000740
Case Reports

With the advent of newer methodologies, it has become possible to detect previously unsuspected pathogens. We wish to present a case of human granulocytic anaplasmosis that was diagnosed using 16S ribosomal RNA gene sequencing while originally investigating possible culture-negative endocarditis. This case is the first reported in humans from the province of Quebec. A brief review of means of transmission and clinical and laboratory findings as well as treatment is provided.

From the *Division of Microbiology and Infectious Diseases, St Mary's Hospital, Montreal; and

Laboratoire de santé publique du Québec, Sainte-Anne-de-Bellevue, Quebec, Canada.

Correspondence to: Joe Dylewski, MD, Division of Microbiology and Infectious Diseases, St Mary's Hospital, 3830 Lacombe, Montreal, Quebec, Canada H3T 1M5. E-mail:

The authors have no conflict of interest to disclose.

Online date: June 3, 2019

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