As of Tuesday, all Pennsylvania adults became eligible to schedule an appointment for the COVID -19 vaccine.. The state Department of Health says there is appointment availability in many parts of the state now, and they are continuing their initiative with the Area Agencies on Aging to provide assistance to vulnerable seniors for accessing vaccine. To date, Pennsylvania providers have administered more than 6 million vaccines and the state is ranked among the top 20 states for first-dose vaccinations. More than 2.4 million Pennsylvanians are fully vaccinated.