Dr Emma Kalk is a Clinical Epidemiologist in the Centre for Infectious Disease Epidemiology & Research where she manages projects linked to maternal and child health. She has a medical background in paediatric HIV clinical studies. The main focus of her current research has been the impact of HIV and ART in vertical transmission of HIV; this has expanded to include all pregnancy exposures with a special interest in pharmacovigilance during pregnancy and breast-feeding. Dr Kalk is also involved in projects designed to support a population-based database which links operational health data sources and sentinel site-based implementation science studies (most recently, this has included the Western Cape Pregnancy Exposure Registry). She collaborates nationally and within Africa.