coronavirus vaccination centres have had to close because of a snow alert.Health officials in Wales said they closed the sites for "safety reasons", with appointments rescheduled.A yellow weather warning for snow is in place from 3am to 9pm on Sunday for the whole of Wales except Anglesey.The centres that have been shut are in Bridgend, Rhondda, Abercynon and Merthyr Tydfil.The Cwm Taf Morgannwg health board said they have been shut starting on Saturday evening into Monday.Most parts of the country are expected to get up to 3cm of snow - with up to 15cm, nearly six inches, in the Brecon Beacons and Snowdonia.Officials said people with questions about the jabs due on Sunday should call the number on their appointment letters.It tweeted: “Due.