Public health officials fear that youngsters in South West Wales could face a new outbreak of measles because hundreds of children are still not fully immunised.
Today they began vaccinating at Cwmtawe school in Pontardawe after one confirmed case and two suspected cases were diagnosed there. A further two cases are suspected at a school at Abercrave, further up the Swansea Valley. Rob Osborne reports.
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Rain clipping the far north through the evening but elsewhere staying dry with some sunny spells.
Public Health Wales figures show 25 more cases of the virus have also been confirmed.
Photos taken on Saturday morning show Roald Dahl Plass strewn with empty beer bottles and discarded canisters of laughing gas.