Courtney Yuen, PhD, is the Epidemic Intelligence Services (EIS) officer for Scientific, Epidemiology and Outbreak Investigative Branch (SEOIB) at the CDC. Courtney earned a PhD from Harvard University, where she studied stem cell transcriptional regulation for her doctoral thesis. After completing her PhD, Courtney spent 2 years as a Peace Corps volunteer in a rural Ugandan secondary school, where she taught science and addressed women's health and mental health issues among the student population. She then worked in Zambia with the Clinton Health Access Initiative on a costing study of HIV treatment programs. Courtney is currently a researcher at Harvard Medical School studying the epidemiology of drug-resistant TB. In her spare time, Courtney enjoys reading, hiking, and producing excessive quantities of baked goods that inevitably end up in her work place.