Martin J. Blaser, MD

  • Specialty: Infectious Diseases & Immunology
  • Language: English
  • Phone: 646-501-4386


  • Muriel G. and George W. Singer Professor of Translational Medicine, Department of Medicine
  • Professor, Department of Microbiology
  • Director Human Microbiome Program
Board Certifications
  • American Board of Internal Medicine (Infectious Disease), 1979
  • American Board of Internal Medicine - Internal Medicine, 1976
Education and Training
  • Fellowship, University of Colorado Health Science Ctr., Infectious Diseases, 1979
  • Residency, University of Colorado Health Science Ctr., Internal Medicine, 1977
  • Residency, University of Colorado Health Science Ctr., Internal Medicine, 1975
  • MD from New York University, 1973

Locations and Appointments

550 1st Avenue
New York, NY 10016


Phone: 646-501-4386

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My Research

Our studies focus on bacteria of the human microbiome including Campylobacter and Helicobacter species that live in the mucus layer overlying the mucosal epithelium of mammals, including humans. Specifically, we explore the biology of colonization and the nature of the interactions that lead to (or protect from) disease. For the normal microbiome, we study how early life perturbations affect host developmental phenotypes. Our on-going work focuses on the metabolic syndrome, and specifically on obesity and type 2 diabetes, as well as inflammatory disorders such as type 1 diabetes, asthma, psoriasis, and skin infections.


  • Predominance of Lactobacillus spp. among patients who do not acquire multidrug-resistant organisms

    Araos, Rafael; Tai, Albert K; Snyder, Graham M; Blaser, Martin J; D'Agata, Erika M C
    Clinical infectious diseases. 2016 Jun 28. ?-?

  • Antibiotic use and its consequences for the normal microbiome

    Blaser, Martin J
    Science. 2016 Apr. 352 (6285): 544-545

  • Toward a Predictive Understanding of Earth's Microbiomes to Address 21st Century Challenges

    Blaser, Martin J; Cardon, Zoe G; Cho, Mildred K; Dangl, Jeffrey L; Donohue, Timothy J; Green, Jessica L; Knight, Rob; Maxon, Mary E; Northen, Trent R; Pollard, Katherine S; Brodie, Eoin L
    MBio. 2016 May 13. 7 (3): ?-?

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