in Biobehavioral Health in 2004 from the Schreyer Honors College of Pennsylvania State University.

(2006) and Ph.D. (2009) in cancer epidemiology from the Johns Hopkins Bloomberg School of Public Health.

[1] Shiels' dissertation was titled AIDS-defining and non-AIDS-defining cancers in HIV-infected individuals.

[1] She joined the National Cancer Institute (NCI) Infections and Immunoepidemiology Branch (IIB) as a Cancer Research Training Award postdoctoral fellow in 2009, and was promoted to research fellow in 2011.

[2] Her research program focuses on quantifying cancer risk and burden in people living with HIV, estimating the impact of risk factors on changing cancer rates over time, and understanding rising rates of premature mortality in the United States.