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Some supermarket chickens contaminated, says consumer group

13 April 2012 Last updated at 13:46 BST

One in five supermarket chickens are contaminated, according to consumer group Which?

The study of standard, free range and organic chicken samples from nine supermarkets found 18% were contaminated with campylobacter and 17% were contaminated with listeria.

Salmonella was present in 1.5% of samples.

The Food Standards Agency says tackling the bacteria is a key priority, and that if people follow cooking guidelines they should minimise the risk of getting ill.

Richard Lloyd, executive director of Which?, told BBC Radio 5 live Morning Reports the figures were "worryingly high".

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