COVID-19 Vaccine Clinics Upcoming COVID-19 vaccination clinics. Appointments are still available; a limited number of walk-ins will be accepted. Visit https://booking.appointy.com/en-US/quadcovidvaccine/bookings/service to schedule an appointment. Wednesday May 26, 2021 | 2 p.m. to 3 p.m. Lyon County Fairgrounds (95 E Hwy 95a, Yerington) Janssen (authorized for those ages 18 and older) Wednesday May 26, 2021 | 3 p.m. to 5 p.m. Lyon County Fairgrounds (95 E Hwy 95a, Yerington) Pfizer (authorized for those ages 12 and older) Thursday May 27, 2021 | 1 p.m. to 3 p.m. Douglas County Fairgrounds (Pinenut Rd, Gardnerville) Moderna (authorized for those ages 18 and older ONLY) Thursday May 27, 2021 | 3 p.m. to 5 p.m.