A superbug to which children are particularly vulnerable is spreading in Britain and specialists say the government is failing to take action to stop it.

A Sunday Times investigation has found at least 10 youngsters aged between six and 13 have been left fighting for their lives after contracting the infection. Doctors are concerned because they appear to have caught the bug in playgrounds and parks.

The children were all hit by Panton-Valentine leukocidin (PVL), a toxin that combines with MRSA, the bacteria that cause thousands of infections, sometimes lethal, in hospitals.

Mark Enright, professor of molecular epidemiology at Imperial College London, said: “This infection can kill healthy children in one to two days, but the authorities are continuing to treat MRSA as purely a hospital problem and trying to assuage public opinion.”

Other specialists accuse the government of ignoring warnings about the seriousness of PVL-MRSA, failing to mount adequate infection surveillance and blocking the use of a treatment to tackle it. Professor Richard Wise, a leading microbiologist, says that he warned a government health minister three years ago of the threat, but little has been done.

The phenomenon of PVL-MRSA was identified in America several years ago. British doctors have now reported cases from the south coast to the Midlands. They include a six-year-old girl left brain-damaged after she fell off her scooter and contracted the infection in her shin bone, from where it spread throughout her body, and a nine-year-old boy who was crippled after a graze playing football.

The mother of a 10-year-old boy in London who caught the bug said: “One day he was playing happily and the next day he couldn’t see, speak or move. The doctors didn’t know what was happening. It was terrifying.”

Official figures show that the number of recorded PVL infections rose from 224 in 2005 to 496 in 2006.

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