I work in the area of mathematical biology, particularly waterborne diseases. Much of my recent research concerns cholera dynamics.

Recent Grants:

EEID Award:
Title: Modeling the effects of heterogeneity in water quality on cholera disease dynamics
PI: Joseph Tien, Ohio State University
Summary: Deadly outbreaks of cholera among people in Haiti, Angola and elsewhere can broadly be blamed on poor water quality. However, more knowledge is needed about how the spread of disease relates to the distribution and variation of water quality and treatment facilities across different types of communities (such as shanty-towns, tent camps and commercial centers). This study will use mathematical models and in-depth analyses of outbreaks to investigate how these differences affect the ability of cholera and other waterborne diseases to invade, spread, and remain in a population.