TY - JOUR T1 - SExually transmitted infections AU - Kuehn BM Y1 - 2009/02/25 N1 - 10.1001/jama.2009.197 JO - JAMA SP - 817 EP - 817 VL - 301 IS - 8 N2 - In 2007, 1.1 million diagnoses of chlamydia were reported to the CDC, a 7.5% increase since 2006, when 1.0 million cases were reported. The agency notes, however, that half of all cases go undiagnosed, and estimates that there were actually 2.8 million new cases of chlamydia in 2007. SN - 0098-7484 M3 - doi: 10.1001/jama.2009.197 UR - http://dx.doi.org/10.1001/jama.2009.197 ER -