Physician Photo

John Alan Branda, MD

Assistant Pathologist, Massachusetts General Hospital

Associate Director, Microbiology Laboratory, Massachusetts General Hospital

Assistant Professor of Pathology, Harvard Medical School

Dr. Branda is a specialist in microbiology diagnostic testing. He directs the Clinical Clerkship in Anatomic Pathology and Laboratory Medicine program for Harvard Medical School Students.

Department of Pathology
Clinical Interests
Clinical Microbiology
Boston: Massachusetts General Hospital
Medical Education
MD, Harvard Medical School
Residency, Massachusetts General Hospital
Fellowship, Massachusetts General Hospital
Board Certifications
Clinical Pathology, American Board of Pathology
Patient Age Group
Accepting New Patients
Accepting New Patients

BiographyDr. Branda received his MD degree from Harvard Medical School in 2000. He completed residency training in anatomic and clinical pathology at Massachusetts General Hospital, followed by a fellowship in clinical microbiology. He joined the Mass General Pathology faculty in 2004, and is currently associate director of the Microbiology Laboratories. He is director of the Clinical Clerkship in Anatomic Pathology and Laboratory Medicine program at Mass General Hospital.  His research interests include improving patient care through the development of new diagnostic testing strategies, and optimizing utilization of laboratory testing, and antimicrobial agents.  He has a special interest in diagnostic testing for tick-borne illnesses, such as borreliosis, babesiosis, anaplasmosis and tularemia.


Research interests include:

  • Development of new testing strategies, and improvement of existing diagnostic approaches in clinical microbiology
  • Special interest in the diagnosis of tick-borne infectious diseases, particularly Lyme borreliosis

For more information about research concepts, co-authors, and to see a timeline, visit Dr. Branda's profile at the Harvard Clinical and Translational Science Center.


View my most recent publications at PubMed

  1. Case records of the Massachusetts General Hospital. Case 40-2014. A 57-year-old man with inguinal pain, lymphadenopathy, and HIV infection. Gandhi RT, Alkasab TK, Nardi V, Branda JA. N Engl J Med. 2014 Dec 25;371(26):2511-20. doi: 10.1056/NEJMcpc1404518. No abstract available.
  2. Case records of the Massachusetts General Hospital. Case 36-2014. An 18-year-old woman with fever, pharyngitis, and double vision. Olson KR, Freitag SK, Johnson JM, Branda JA. N Engl J Med. 2014 Nov 20;371(21):2018-27. doi: 10.1056/NEJMcpc1310001. No abstract available.
  3. Tenosynovitis caused by a novel nontuberculous Mycobacterium species initially misidentified as a member of the Mycobacterium tuberculosis complex. Simner PJ, Hyle EP, Buckwalter SP, Branda JA, Brown-Elliott BA, Franklin J, Toney NC, de Man TJ, Wallace RJ Jr, Vasireddy R, Gandhi RT, Wengenack NL. J Clin Microbiol. 2014 Dec;52(12):4414-8. doi: 10.1128/JCM.00967-14. Epub 2014 Sep 24.

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