Joshua T Schiffer, MD, MS

I am an Associate Member in the Vaccine and Infectious Disease and Clinical Research Divisions at the Fred Hutchinson Cancer Research Center and an Associate Professor at the University of Washington in the Division of Allergy and Infectious Diseases, Department of Medicine. I love identifying problems in the clinic and the infectious diseases literature that can be addressed with mathematical models. I feel privileged to collaborate with such a driven and gifted group of multi-disciplinary scientists and clinicians at Fred Hutchinson and the University of Washington.



Pavitra Roychoudhury, PhD

I am a Postdoctoral Research Associate with the Schiffer and Jerome Groups. Having completed my PhD in Bioinformatics and Computational Biology at the University of Idaho where I studied the effects of spatial structure on phenotypic evolution in bacteriophages. I enjoy working on problems that lie at the interface of biology, mathematics and engineering and am excited to be a part of the dynamic and interdisciplinary environment at the Hutch.




Dan RoundSmall

Daniel Reeves, PhD

I am a Research Associate with the Schiffer group working on models of HIV. I received a PhD in physics from Dartmouth College, but was always inspired by biological problems. The complex dynamics at work in viral infection drew me to theoretical immunology originally, and I now integrate my background from physical modeling into providing new insights into cellular processes, linking the mathematics of ecology and immunology, and ultimately, helping to cure HIV.





David Swan, MS, MME

I joined the Schiffer Group in 2010 as an independent software consultant. Additionally, I work with several groups at Fred Hutchinson providing simulation expertise and other types of computing support. Prior to working at Fred Hutchinson, I was a senior software engineer with F5 Networks and Boeing as well as serving as a high school teacher with the Peace Corps in Kenya, East Africa. I have an undergraduate degree in Electrical Engineering from Stanford and graduate degrees in Computer Science and Medical Engineering from UW.




Elizabeth Duke, MD

I joined the group in the summer of 2015 as an Infectious Disease Fellow. I studied Math and Latin at Marshall University in West Virginia as an undergraduate, Math as a master's student, and Medicine at Marshall's School of Medicine. After completing my residency in Internal Medicine at the University of Wisconsin (UW), I came to the Pacific Northwest as an Infectious Disease Fellow at the University of Washington (UW). Staying on at the UW and Fred Hutch as a KL2 scholar in the Institute for Translational Health Sciences (ITHS), I am currently working on projects that include intra-host models of CMV and HIV latency.



Florencia Round

Florencia Tettamanti Boshier, PhD

I am a Post-Doctoral Research Fellow in the Schiffer Group. I have a PhD in Fluid Dynamics from the Imperial College London, where I held a post-doctoral position before joining the group here at Fred Hutchinson. As an applied mathematician, I enjoy developing mathematical models that can elucidate the complex dynamics of infectious diseases and inform the development of new cures and treatments for them. Currently, I am using time series analysis to study the dynamics of the vaginal microbiome in women with BV.





E. Fabian Cardozo-Ojeda, PhD

I am a staff scientist with the Schiffer group in the Vaccine and Infectious Disease Division. My work focuses on developing theories to address questions related to virus and immune system dynamics, and response to therapeutic strategies especially in the context of HIV-1 infection. The theoretical approaches involve the use of mathematical models and statistical tools to analyze and interpret kinetics patterns observed in data. I recently finished as a postdoctoral researcher at Los Alamos National Labs working with Alan Perelson and Ruy Ribeiro doing mathematical modeling to understand the with-in host dynamics of HIV-1 during different therapy approaches. I received my Ph.D. from the Department of Electrical and Computer Engineering at the University of Delaware working with Ryan Zurakowski.