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Our research focuses on the immunological aspects of pathogen-host interactions. The lab is actively involved in HIV pathogenesis and vaccine studies using the nonhuman primate model of SIV infection. We are particularly interested in pediatric HIV transmission by breast-feeding and the early, local host immune response. A main research focus is on developmental differences in host immune responses between infants and adults and how they alter pathogenesis. The effect of co-infections (e.g. malaria and Tb) on HIV pathogenesis and transmission is a second research focus. The lab is developing a nonhuman primate model of SIV-Plasmodium fragile co-infection to study HIV-P. falciparum infection in humans.