CDC's Advisory Committee on Immunization Practices (ACIP) has finalized the 2017 vaccination schedule for U.S. adults. Among other key changes, the panel recommends against use of live attenuated influenza vaccine for the 2016–17 season, due to poor efficacy. Additionally, the new guidelines widen the scope of hepatitis B vaccination to include people with hepatitis C infection or other chronic liver disease. Other important updates adjust the recommendations for human papillomavirus and meningococcal vaccination. ACIP also simplified the graphics and wording in the new document, in an effort to keep it informative but also easy to understand. "Missed opportunities for vaccinating adults may result in part from limited familiarity or challenges with the complexity of the adult immunization schedule among health care providers," CDC deputy associate director for adult immunizations David Kim, MD, and his coauthors wrote in the Morbidity and Mortality Weekly Report. The new recommendations also appear in the Annals of Internal Medicine.