In the most improved category James Heyes, nine, from Upham C of E Primary in Southampton was singled out for battling dyspraxia - described by the Dyspraxia Foundation as an immaturity of the brain resulting in messages not being properly transmitted to the body.

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"We can't say for sure how much of that benefit is down to the yoghurt and how much they are down to a whole range of infection control procedures that the hospital has in place such as the deep cleaning programme, the bare-below-the-elbow programme, and the increased isolation procedures, " Ms Heyes said.

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