Rene Niehus

Research Associate
Center for Communicable Disease Dynamics (CCDD)

Rene is a microbiologist-turned-epidemiologist interested in antibiotic resistance and the ecological and evolutionary processes of the human gut microbiome. He has a background in Biomedicine (BS at Georg-August-University in Göttingen, Germany & Karolinska Institute in Stockholm, Sweden) and in Computational Systems Biology (MS&PhD at University of Oxford, UK). From 2016 to 2017, he was based in Laos and Thailand working with Ben Cooper of the Mahidol-Oxford Tropical Medicine Research Unit…

Christina Nieves

CCDD Student, SM, 2012-2014
Current Title: Community Research and Evaluation Specialist, New York City Department of Health and Mental Hygiene

Christina Nieves is a graduate of the Harvard TH Chan School of Public Health where she obtained her Master’s degree in Infectious Disease Epidemiology. While at Harvard, she worked with George Seage and studied contraceptive choices of women living with HIV. She is currently works at the Center for Health Equity at the New York City Department of Health and Mental Hygiene as a Community Research and Evaluation Specialist. In…

Justin O’Hagan

CCDD Doctoral Student, 2010-2012
Current Title: Director, Outcomes Research, Merck

Justin holds the position of Director, Outcomes Research at Merck, where he works on dengue and chikungunya vaccines. He previously worked as an Epidemiologist at the Centers for Disease Control and Prevention in the Division of Healthcare Quality Promotion. His areas of focus include using transmission modeling to improve the design of epidemiologic studies for healthcare-associated infections and conducting simulations to identify opportunities for intervention to reduce the burden of…

Betsy Ogburn

CCDD Postdoctoral Research Fellow, 2012-2013
Current Title: Assistant Professor, Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health

I am an Assistant Professor in the Department of Biostatistics at Johns Hopkins University. My research is in causal inference and epidemiologic methods. Broadly, I am interested in developing methods for and describing the behavior of traditional statistical machinery when standard assumptions are not met. I have worked on characterizing the bias that results from misclassification, i.e. violations of the assumption that variables were measured accurately. I have also worked on semiparametric…

Scott Olesen

Postdoctoral Research Fellow
Center for Communicable Disease Dynamics (CCDD)

Scott Olesen was a postdoctoral research fellow at the Harvard T. H. Chan School of Public Health with Dr. Yonatan Grad and Dr. Marc Lipsitch. His work at Harvard focused on the epidemiology of antibiotic resistance and its relationship to antibiotic use. Scott earned his PhD in Biological Engineering at MIT, where he studied environmental microbiology and the human microbiome. Scott earned Master Degrees in Chemistry in 2012 and in…

Samantha Palace

Postdoctoral Research Fellow
Center for Communicable Disease Dynamics, Department of Epidemiology

Samantha Palace, PhD, was a postdoctoral research fellow at the Harvard T. H. Chan School of Public Health working with Drs. Marc Lipsitch and Yonatan Grad in the Center for Communicable Disease Dynamics and the Department of Immunology and Infectious Diseases. Her work focused on understanding how bacteria minimize fitness costs associated with the acquisition of antimicrobial resistance, and whether these fitness costs can be exploited to improve the treatment…

Corey Peak

CCDD MS & ScD Student, 2012-2017
Current Title: Epidemic Intelligence Service (EIS) Officer at Centers for Disease Control and Prevention (CDC)

Corey Peak completed his Doctor of Science in Infectious Disease Epidemiology at the Harvard T.H. Chan School of Public Health with two CCDD committee members – Caroline Buckee, his advisor, and Marc Lipsitch. He defended his dissertation entitled “Optimizing Interventions to Control Emerging Infectious Diseases” on March 7, 2017. He is currently an Epidemic Intelligence Service (EIS) Officer with the US Centers for Disease Control and Prevention (CDC). Based in…

Talia Quandelacy

CCDD ScM2-Student, 2011-2013
Current Title: PhD Student, Johns Hopkins Bloomberg School of Public Health

Talia is a PhD student in the Department of Epidemiology at the Johns Hopkins Bloomberg School of Public Health. Her research focuses on understanding micro-scale transmission and immuno-dynamics of influenza in the US and southeast China, co-advised by Drs. Derek Cummings at the University of Florida and Justin Lessler at Hopkins. She is a member of the University of Florida and John Hopkins Infectious Disease Dynamics research groups. Click here for more information about…

Paul Reeping

Current Title: Doctoral Student at Columbia University

Paul Reeping is a first year doctoral student at Columbia University. He received his M.S. from Harvard T.H. Chan School of Public Health in the spring of 2017. He grew up in Pittsburgh where he also attended the University of Pittsburgh where he studied microbiology. After college, he became a teacher through Teach for America and taught environmental science to 10th graders on the South Side of Chicago for three…