Government officials have said a coronavirus vaccine may be available before the end of the year. Here’s a breakdown of when the vaccine could actually be distributed. Health care workers and nursing home residents are expected to be vaccinated first, possibly by as early as this month. More health care workers and essential workers, as well as high-risk adults, could potentially receive the vaccine by January or February. Phase 1 of the vaccine for the general public may begin in March, but only for those at high risk.Phase 2 and 3 may occur sometime between April and June, with young adults and children likely having to wait until the final phase. As for costs and availability, the vaccine is expected to be covered by most insurances and be available in most pharmacies and doctors' offices.