James Hadler, MD, MPH

Departments & Organizations

School of Public Health: Connecticut Emerging Infections Program | Epidemiology of Microbial Diseases


Clinical Professor of Epidemiology

Research Interests: The epidemiology of infectious diseases of public health import, particularly the relationship between socioeconomic status and these diseases; infectious disease control.

Dr. Hadler currently is a senior infectious disease and medical epidemiology consultant to the Connecticut and Yale Emerging Infections Programs, the New York City Department of Health and Mental Hygiene and the Council of State and Territorial Epidemiologists. He is involved in the description of health disparities using socioeconomic measures, and most projects conducted by the Connecticut and Yale EIPs, emphasis on epidemiology and prevention of human papilloma virus-related disease, influenza, and bacterial intestinal and respiratory infections.

Dr. Hadler’s main research interests are in the epidemiology, prevention and control of infectious diseases of public health importance in the U.S. For 25 years, from 1984-2008, he was the Connecticut State Epidemiologist and director of the state’s infectious disease surveillance and control programs. In that capacity he lead investigations into many infectious disease outbreaks and emerging infectious disease problems such as HIV, multidrug-resistant tuberculosis, West Nile virus, anthrax, SARS, shiga-toxin producing E. coli and MRSA, and evaluated the impact of new vaccines on the epidemiology of their target diseases.

Education & Training

MPH Yale University (1982)
MD Columbia University (1972)
BS McGill University, Zoology, chemistry (1968)

Honors & Recognition

  • Top 10 stories of 2016 on Public Health Newswire for “Estimating Potential Reductions in Premature Mortality in New York City From Raising the Minimum Wage to $15” authored by Tsao T, Konty K, Van Wye G, Barbot O, Hadler J, Linos N and Bassett MT. AJPH. 2016 Jun;106(6):1036-41.American Public Health Association (2016)

  • Paper of Year Award for “Solitary confinement and risk of self-harm among jail inmates” authored by Kaba F, Lewis A, Glowa-Kollisch S, Hadler J, Lee D, Alper H, Selling D, MacDonald R, Solimo A, Persons A and Venters H. AJPH 2014;104(3):442-447.American Public Health Association (2014)

  • 2014 Distinguished Student MentorYale School of Public Health (2014)

  • Pump Handle Award for Outstanding Achievement in Applied EpidemiologyCouncil of State and Territorial Epidemiologists (2007)

  • Charles C. Shepard Science Award for Prevention and Control for scientific excellence demonstrated by the publication of “Decline in invasive pneumococcal disease after the introduction of protein-polysaccharide conjugate vaccine”, awarded to Cynthia Whitney, Monica M. Farley, James Hadler et al.CDC (2004)

  • Distinguished Alumni AwardYale Association of Alumni in Public Health (2001)

  • Distinguished Friend of the EISEpidemic Intelligence Service Alumni Association (2000)

Professional Service

  • City of New Haven Board of Health (2011 - Present) • Centers for Disease Control, Consultant for DSTDP/LRRB Functional Planning Retreat, December 2017. • Centers for Disease Control, Consultant to a Structured Expert Judgement on Attribution of Causes of Disease Due to Foodborne Pathogens, May 2017,

  • Connecticut Advisory Committee for the Elimination of Tuberculosis (2009 - Present)

  • Connecticut Childhood Vaccine Advisory Committee (2009 - Present) Chairperson

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Contact Info

James Hadler, MD, MPH
Office Location
Yale Emerging Infections Program1 Church Street, Ste 7th floor
New Haven, CT 06510
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Curriculum Vitae