• Oluwatosin Olaiya MBChB, MSc

  • Epidemiologist - Senior

    • Center for Clinical Epidemiology & Population Health
    • 1000 North Oak Ave. ML2 Marshfield, WI 54449


MBChB, Medicine, Obafemi Awolowo University, Ile-Ife, Nigeria
Msc, Global Health Sciences, University of Oxford, Oxford, UK

Work Experience

2012 to 2012:
Intern, World Health Organization, Geneva, Switzerland
2013 to 2015:
Epidemic Intelligence Service officer, Centers for Disease Control and Prevention, Atlanta, GA
2015 to 2017:
Epidemiologist, Centers for Disease Control and Prevention, Atlanta, GA
2017 to Present:
Project Scientist, Marshfield Clinic Research Institute , Marshfield, Wisconsin


Dr. Olaiya is a medical epidemiologist and physician in CCEPH. She trained at Obafemi Awolowo University in Nigeria and received a Masters degree in Global Health Science from the University of Oxford, UK. She completed additional training at CDC in the Epidemic Intelligence Service (EIS) and joined the Marshfield Clinic Research Institute (MCRI) in August 2017.

Dr. Olaiya serves as a project scientist on variety of epidemiological studies, including the Vaccine Safety Datalink. Her work has included facilitating the startup of a CDC-funded study to assess patterns of influenza transmission within households, examining clinician’s perspectives on human papillomavirus (HPV) and HPV vaccines, examining antibiotic prescription practices, and facilitating development of a trauma research program. As a member of the trauma research team, she provides research/epidemiologic support for and mentorship to clinicians interested in conducting trauma research. She also serves as the research faculty member for the Internal Medicine residency program, where she provides research-related mentorship and oversight to residents.

Dr. Olaiya joined MCRI with a strong background in reproductive health epidemiology and public health. Her work at the CDC spanned many epidemiological responses including the U.S. domestic Ebola investigation, blood lead levels in Philadelphia children, rapid assessment of a smoking cessation program in Ohio, evaluation of pertussis vaccination in Vermont, and U.S. Zika Pregnancy Registry.

Select Publications

  • Agaku IT, Olaiya O, Quinn C, Tong VT, Kuiper NM, Conrey EJ,...Dee D. (2015 Dec). A Mixed-Methods Assessment of a Brief Smoking Cessation Intervention Implemented in Ohio Public Health Clinics, 2013. Matern Child Health J. 19(12):2654-62.
    PubMed ID: 26179721
  • Olaiya O, Sharma AJ, Tong VT, Dee D, Quinn C, Agaku IT,...Satten GA. (2015 Dec). Impact of the 5As brief counseling on smoking cessation among pregnant clients of Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) clinics in Ohio. Prev Med. 81 :438-43.
    PubMed ID: 26529063
  • Regan JJ, Jungerman R, Montiel SH, Newsome K, Objio T, Washburn F,...Brown C. (2015 Jan 30). Public health response to commercial airline travel of a person with Ebola virus infection - United States, 2014. MMWR Morb. Mortal. Wkly. Rep.. 64(3):63-66.
    PubMed ID: 25632954
  • Olaiya O, Dee DL, Sharma AJ, Smith RA. (2016 Jan 22). Maternity Care Practices and Breastfeeding Among Adolescent Mothers Aged 12-19 Years--United States, 2009-2011. MMWR Morb. Mortal. Wkly. Rep.. 65(2):17-22.
    PubMed ID: 26796301
  • Romero LM, Olaiya O, Hallum-Montes R, Varanasi B, Mueller T, House LD,...Middleton D. (2017 Mar). Efforts to Increase Implementation of Evidence-Based Clinical Practices to Improve Adolescent-Friendly Reproductive Health Services. J Adolesc Health. 60(3S):S30-S37.
    PubMed ID: 28235433
  • Olaiya O, Nerlander L, Mattson CL, Beer L. Exchange sex among people receiving medical care for HIV in the United States - medical monitoring project 2009-2013. AIDS Care. 2018 October; 30(10):1315-1321.
    PubMed ID: 29678119
  • Olaiya O, Weiser J, Zhou W, Patel P, Bradley H. Hypertension Among Persons Living With HIV in Medical Care in the United States-Medical Monitoring Project, 2013-2014. Open Forum Infect Dis.. 2018 March; 5(3):ofy028.
    PubMed ID: 29516021