The Commonwealth of Massachusetts has approved MIT’s request to serve as an employer-based distributor of the Covid-19 vaccine. The designation means that as sufficient doses of the vaccine become available over the coming months, the Institute will be in a position to vaccinate some 50,000 MIT students, employees, affiliates, and their dependents — regardless of whether MIT Medical is their primary care provider. MIT brings to this effort its long track record running one of the largest flu vaccination clinics in New England, as well as its recent experience administering…