Tamiflu-resistant swine flu 'could get worse'

The Tamiflu-resistant swine flu that broke out in a Welsh hospital could become more common as the virus mutates.

Three of the five patients diagnosed with what is thought to be the world's first cases of the new strain are still in hospital.

Prof Nigel Dimmock, a virologist at the University of Warwick, said: "This is just the beginning. You have got a lot of viruses and if you use Tamiflu at the level they are using it, you'll get resistance."

But he added: "The vaccine is coming on, so Tamiflu is a stop-gap. There's no need to panic."

Meanwhile a mutation of the flu virus which has apparently killed hundreds in the Ukraine could reach Britain, experts say.

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