COLCHESTER â Vermonters can get vaccinated against COVID-19 on Wednesday and Thursday in Colchester without an appointment. Two-hundred doses of Johnson & Johnson's single-shot vaccine are available at the Tarrant Rec Center at Saint Michael's College â 132 Campus Rd, Colchester. Eligible Vermonters can walk-in to the clinic until 4 p.m. on Wednesday, May 5 and Thursday, May 6. Who is eligible? âOut-of-state residents who are a college or boarding school student, even if they do not intend to stay in Vermont for the summer moved to Vermont within the last 6 months with the intention of becoming a resident work in one of these occupations or settings in Vermont: health care personnel, child care worker, work in a school or the public safety systemÂ