In collaboration with many
researchers (graduate students, postdocs, and
faculty elsewhere), we have
examined the role of cross-immunity on the evolution and dynamics of influenza; the impact of behavioral changes, long periods of infectiousness, variable infectivity, co-infections, prostitution, social networks, and vaccine efficacy on HIV dynamics; the role of exogenous re-infection, variable progression rates, vaccination, public transportation, close and casual contacts on tuberculosis dynamics and control; the impact of life - history vector dynamics on dengue epidemics; and on the identification of time - response scales for epidemics of foot and mouth disease.