Dr Nigel Rollins joined the Department of Maternal, Newborn, Child and Adolescent Health and Ageing at WHO in July 2008 and is a member of the Research and Guideline Development team. He trained as a paediatrician in Belfast, Northern Ireland and his work focuses on interventions to improve child survival, growth and development. This includes research to improve the coverage and quality of infant feeding practices, optimizing linear growth of children, preventing child obesity the risk of non-communicable disease, and the prevention of mother-to-child transmission of HIV with a focus on breastfeeding. Prior to joining WHO, Dr Rollins was Professor and head of the Centre for Maternal and Child Health at the University of KwaZulu-Natal (UKZN), Durban, South Africa, where he lived and worked for 14 years.