Muireann Brennan Adjunct Assistant Professor

Adjunct or Visiting
Global Health

Phone: 404-498-0910


Since 2015, Muireann Brennan, MD, MPH, has been a secondee from the Centers for Disease Control and Prevention, Division of Global Health Protection, Emergency Response and Recovery Branch, to UNICEF EMOPS in Geneva. Muireann has over 20 years of experience with CDC responding to complex humanitarian disasters across the globe. She led an evaluation of the emergency health system in Darfur, responded to flooding and a cholera outbreak in Pakistan, supported humanitarian response activities in northern Syria, and strengthened epidemic disease surveillance in Jordan. She also coordinated vaccination campaigns in Afghanistan, Indonesia and South Sudan, evaluated and strengthened mortality surveillance in refugee camps in South Sudan and Ethiopia, conducted surveillance for gross violations of human rights in the Democratic Republic of Congo, and served as medical coordinator for over a million refugees in Syria and Sierra Leone. Muireann earned an MD from Trinity College Dublin and MPH from Johns Hopkins School of Hygiene and Public Health. Before joining CDC in 1996, she managed a hospital in northern Kenya and implemented public health programs in Bosnia during the Balkan war.


  • Doctorate of Medicine (MD), Trinity College, 1990
  • Masters in Public Health, John Hopkins School of Hygiene and Public Health, 1993
  • Bachelors of Science, Royal College of Surgeons, 1989


  • Bilukha OO, Brennan M, Woodruff BA., 2003, Death and injury from landmines and unexploded ordnance in Afghanistan., JAMA, 290, 650-3
  • Dadgar N, Ansari A, Naleo T, Brennan M, Salama P, Sadozai N, Golaz A, Lievano F, Jafari H, Mubarak M, Hoekstra E, Paganini A, Feroz F, 2003, Implementation of a mass measles campaign in central Afghanistan, December 2001 to May 2002., Journal of Infectious Diseases, ,
  • Brennan M., Vitek C., Strebel P., Wattigney W., Bisgard K., Brisgalov S., Bragina V., Pyanikh V., Wharton M., 2000, How many doses of diphtheria toxoid are required for protection in adults? Results of a case-control study among 40- to 49-year-old adults in the Russian Federation. Brennan, Journal of Infectious Diseases, 181, 193-6
  • Brennan M., Strebel P., George H., Yih WK., Tachdjian R., Lett SM., Cassiday P., Sanden G., Wharton M., 2000, Evidence for transmission of pertussis in schools, Massachusetts, 1996: Epidemiologic data supported by pulsed-field gel electrophoresis studies., Journal of Infectious Diseases, 181, 210-5
  • Vitek, CR, Brennan, MB, Gotway, CA, Bragina, VY, Govorukina,NV, Kravtsova, ON,Rhodes, PH, Bisgard, KM, Strebel, PM, 1999, Risk of diphtheria among schoolchildren in the Russian Federation in relation to time since last vaccination., Lancet, 353, 355-8
  • Guris, D., Strebel, P.M., Bardenheier, B., Brennan, M., Tachdjian, R., Finch, E., Wharton, M., Livengood, J.R., 1999, Changing epidemiology of pertussis in the United States: increasing reported incidence among adolescents and adults, 1990-1996., Clinical Infectious Diseases, 28, 1230-7

Affiliations and Activities

Centers for Disease Control and Prevention