 The study found low hepatitis A and B vaccination series completion rates in the U.S., which were lower among Medicaid in-release compared to commercial Medicare in-release. Commercial Medicare in-release who initiated with the Bivalent Vaccine had higher series completion rates than those who initiated with Minovalent Vaccines, while this was not observed among Medicaid in-release. This article was authored by Parinas K. Goswala, Brandon J. Patterson, Wendy Wai-Cheng and others.