2 Hrs Ago In this file photo, senior citizens line up at the Diego Martin Health Centre to register for dates to receive covid19 vaccines. - Photo by Vidya Thurab THERE were no unmanageable crowds or queues for registration for covid19 vaccines at the Diego Martin Health Centre on Wendy Fitzwilliam Boulevard, Diamond Vale, on Tuesday. Three health workers sat outside the building, registering people as they walked in slowly throughout the day. A worker who spoke briefly with Newsday said that was in contrast to the previous evening, when dozens or more people, young and old, began arriving at the centre from the early afternoon.