05:02AM, Thursday 13 June 2013
Public Health England said there were two in the area in February, while in the same period last year no-one was infected.
In Slough there were no cases, which was the same in 2012.
They were released as part of a national MMR catch–up vaccination programme.
Across the Thames Valley there were four cases at the start of the year, with cases in April in both Oxfordshire and Buckinghamshire.
In England, there was 962 cases from January to April with around the highest recorded levels seen since 1994.
The catch-up programme to increase MMR vaccination uptake in children and teenagers is run by Public Health England, NHS England, the Department of Health, and local authorities.
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Police raided addresses in Lillibrooke Crescent, Cox Green, and in Crown Lane, Farnham Royal, at about 7.15am.