Nobel Medicine: The 2026 Nobel Prize in Physiology or Medicine went to Karl Deisseroth (US) and German scientists Peter Hegemann and Georg Nagel for optogenetics—light-controlled switches that let researchers turn specific nerve cells on and off, helping map brain circuits and pointing toward future treatments for disorders like Parkinson’s and epilepsy. Medicare Relief: President Trump announced one-time $90 Part B “premium rebate” payments for about 21 million traditional Medicare enrollees, with key exclusions for higher-income beneficiaries, Medicare Savings Program participants, and Medicare Advantage members. Medicare Advantage Scrutiny: A federal appeals court panel signaled skepticism toward HHS arguments in a lawsuit challenging Medicare Advantage audit rules, keeping pressure on how plans are reviewed and paid. Fraud & Enforcement: A Houston doctor was arrested after a federal indictment alleging a $20M COVID-19 Medicare fraud scheme, while Nebraska convicted a former court-appointed guardian of Medicaid-related financial exploitation. Health Access & Care Delivery: Malaysia’s health committee urged incentives for medical officers in Sabah and Sarawak and called for more mobile services; in the US, the BBB warned of Medicare open-enrollment scams. Rare Disease Business: Shionogi agreed to buy IntraBio for $2B to expand its rare-disease portfolio with Aqneursa. Device/Clinical Progress: Innova Vascular reported positive pivotal TRUST study results for its Laguna thrombectomy system in pulmonary embolism.