Kidprint is a research project run out of the Center for Health at the University of California at San Diego’s Design Lab, which developed the ION device to provide identification for very young people to enable effective immunization and early childhood health checks. The KidPrint research team has achieved functional true acceptance rate of 99.9 percent enrolling and authenticating children as young as 3 days old with ION, KidPrint project lead Eliah Aronoff-Spencer told Biometric Update in an interview.