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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Wales scrum-half Gareth Davies says the Scarlets mean business in Saturday's European Champions Cup semi-final against Leinster.
The MP has become Welsh Labour's first deputy leader after the result was announced at the Welsh Labour conference in Llandudno.
At Welsh Labour's conference Carwyn Jones is expected to make a speech containing pledges for his party and the wider public