Medical experts say there's been a four-fold rise in the number of Welsh cases of measles this year, compared to the previous 12 months.
From January to June there were 61 cases.
Public Health Wales says raising MMR vaccination rates is the key to tackling the problem.
Incidences of whooping cough were also up.
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A bitterly cold night to come with a widespread frost for much of Wales.
Daniel Ivins takes photographs while out and about in his work as a dam safety inspector.
Talks between Welsh and Scottish ministers with the UK Government have ended without agreement despite a concession from London