Greene County. Below you will find information regarding risk-based and age-based phases, vaccine availability at health departments, and information to request an appointment. Risk-based Phase: 1a1, 1a2, 1b, 1c, 2a, 2b, 3 Age-based Phase: 55+, 65+, 70+, 75+ Vaccine Available: Yes Get Help and Make an Appointment by Phone: 866-442-5301 Request ....