Dr. Hannan is a member of the American Academy of Nursing whose program of research focuses on improving health outcomes of minority mothers and their infants leading to lower healthcare costs. Dr. Hannan has been a Principal Investigator on a grant funded by the National Institutes of Health examining an intervention to improve healthcare access for low-income mothers and their infants. Dr. Hannan has also served as a Co-Investigator on a Canadian Institute of Health-funded grant for a multi-international study examining ethno-cultural infant feeding practices with HIV+ mothers.