Based in the Division of Infectious Diseases at Boston Children’s Hospital, the Precision Vaccines Program fosters international collaboration to characterize distinct vaccine-induced immune responses of vulnerable populations such as the very young and the elderly to inform development of novel vaccines tailored to protect them. Program members have domain expertise in vaccinology, clinical trials, immunology, molecular biology, biostatistics, bioinformatics, and powerful big data (“OMIC”) approaches. Views are our own.