Some urgent care clinics have run out of vaccines and cancelled follow-up shots for certain patients. It’s maddening for affected patients, but not a public health problem assuming those shots are given to someone else instead.

United Health’s Optum is purchasing Atrius Health, an independent physician organization in Massachusetts. Atrius has struggled to compete against the huge hospital systems in the state, even though its physician-led approach is more cost effective. Optum’s heft may level the playing field.

David Williams was quoted in the Boston Globe (State’s hope of vaccinating almost everyone by the end of summer depends on a lot going right), encouraging the state to assume there will be enough vaccines and to focus on getting them out to people.

CBS News and the Daily Kos covered David Williams’s opinions about the use of Groupon in health care.