Teen Girls' Chlamydia Drives STD Rate Up

"Teen girls and young women have the highest rates of chlamydia, the sexually transmitted disease that's exploding across the U.S.

More than 1.2 million cases have been officially reported, the largest number of cases for any of the diseases that must be reported to the CDC."

BBC NEWS | Health | Chlamydia testing 'wasting money'

"The National Audit Office said the NHS had duplicated effort and failed to test as many of the under-25 target group in England as it should have.

Last year £17m could have been saved, nearly half the sum spent, if the programme had been better run, it said.

But the government said such an 'ambitious' screening programme was always going to take time to perfect."

Undiagnosed chlamydia worries doctors - ABC News (Australian Broadcasting Corporation)

"There have been 44 new cases of chlamydia this year, bringing the number of people infected over the past five years to 364.

Meanwhile, new cases of syphilis nearly doubled from 21 to 40 in the year to September.

The health service's spokesman Dr David Durrheim says the chlamydia statistics are concerning.

'We don't believe that those numbers tell the whole story either,' he said.

'We believe there is still unfortunately a lot of undiagnosed chlamydia, particularly in the higher risk group - the older teens and the early 20s."