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CDC HIV/AIDS/Viral Hepatitis/STD/TB Prevention News Update

UNITED KINGDOM: Study Suggests Chlamydia Infection Rates Have Changed over Time but Remains Common Among Young Women


Medical Xpress (08.22.2013)
Chlamydia, England’s most common bacterial STD, can cause serious health consequences, including infertility, if left untreated. In 2003, the country instituted a National Chlamydia Screening Programme to control chlamydia by means of early detection and treatment of the disease.

Women with chlamydia infection develop antibodies, and the frequency of detecting the antibodies shows the frequency of infection. Researchers at the University of Bristol, Public Health England, and Imperial College studied the frequency of chlamydia antibodies in young women. The researchers analyzed samples from 4,732 17–24-year-old women and found antibodies in approximately 20 percent of participants. This result indicated the high STD frequency in participants.

From 1993 to 2002, the frequency of chlamydia antibodies increased, which showed that chlamydia transmission increased during that time. Between 2007 and 2010, frequency decreased. The lower frequency of antibodies was concurrent with the increased rates of screening.

The full report, “C. trachomatis pgp3 Antibody Prevalence in Young Women in England, 1993–2010,” was published online in the journal PLoS ONE (2013;


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Information in this article was accurate in August 26, 2013. The state of the art may have changed since the publication date. This material is designed to support, not replace, the relationship that exists between you and your doctor. Always discuss treatment options with a doctor who specializes in treating HIV.