According to the ARS website, no prior appointments are required and people simply have to bring their citizen card, to be eligible and appear on the Ministry of Health's vaccination lists and wait to be vaccinated.
This action comes within the scope of the initiative announced last week by the Task Force for the vaccination plan against Covid-19, whose objective is to create specific days and hours for people from more advanced age groups who, for some reason, have been left out of the process and can now be vaccinated without an appointment.