The city of Lewiston says the mobile vaccination unit will return June 4 and 11 Author: Gabrielle Mannino (NEWS CENTER Maine) Published: 3:16 PM EDT June 3, 2021 Updated: 3:17 PM EDT June 3, 2021 LEWISTON, Maine — The mobile COVID-19 vaccination unit that was stationed in Lewiston in May is set to return this week, the city announced Thursday. According to the city of Lewiston, the mobile clinic will be set up in the Oak Street municipal parking area on Friday, June 4, and Friday, June 11. It will offer vaccinations for those scheduled to receive their second dose of the Moderna vaccine, as well as for those seeking a first dose, which will be offered on a walk-in basis from noon to 5 p.m. on those dates.