225 p., Whitmarsh describes how he followed a team of genetic researchers to Barbados, where he did fieldwork among not only the researchers but also government officials, medical professionals, and the families being tested. Whitmarsh reveals how state officials and medical professionals make the international biomedical research part of state care, bundling together categories of disease populations, biological race, and asthma. He points to state and industry perceptions of mothers as medical caretakers in genetic research that proves to be inextricable from contested practices around nation, race, and family.