SCARBOROUGH, Maine (AP) A high-volume vaccination clinic operated by MaineHealth is up and running at the former Scarborough Downs racetrack.

The first shots were administered Wednesday morning. Eventually, MaineHealth says the clinic will be able to administer up to 2,000 doses per day.

Crews from 41 different companies renovated the 30,000-square-foot grandstand over the course of 15 days to include clinical workrooms and refrigerated rooms to store the vaccine, as well as improved access to high-speed broadband.

Maine’s first mass COVID-19 vaccination center opened up in Bangor on Tuesday, despite snow weather across the state. All told, 900 people were scheduled for vaccinations on the first day at The Cross Insurance Center, but the center can handle double that number.

The first phase of vaccinations, which is close to wrapping up, focused on health care professionals, public safety workers and residents and staff of long-term care facilities.

Maine is currently vaccinating those 70 and older, and will move later to immunize 65- to 69-year-olds, those with high-risk health conditions and essential workers.