County of Madison issued the following announcement on Sep 10.
If you are immune compromised and need an additional (3rd) dose of the COVID-19 vaccine, please call 828-649-0755 for an appointment.
If you need your first or second dose of the COVID-19 vaccine, you can call for an appointment or walk-in from 10AM-12PM and 1PM-4PM on Monday-Friday at the Madison County Health Department.
Original source can be found here.