Merck stock in focus after CDC rewrites childhood vaccine schedule, puts Gardasil dosing under a microscope
New York, Jan 6, 2026, 20:54 (ET) — Market closed Merck & Co. shares rose 1.3% to $108.87 on Tuesday, after U.S. health officials overhauled the childhood immunization schedule and shifted several vaccines away from broad, routine recommendations. The Health and Human Services Department said the revised schedule keeps a core set of vaccines as routine for all children and moves others to high-risk categories or “shared clinical decision-making” — meaning doctors and families weigh the shot based on a child’s risk. HHS also said studies support one dose of the HPV vaccine instead of two and that vaccines on