Chlamydia infection is a common sexually transmitted infection in humans caused by the bacterium Chlamydia trachomatis. Chlamydia is a major infectious cause of human genital and eye disease. More than 95% of people will be cured if they take their antibiotics correctly. Most commonly prescribed antibiotics for chlamydia are azithromycin and doxycycline.In recent years techniques like Nucleic acid amplification tests (NAAT), such as polymerase chain reaction (PCR), transcription mediated amplification (TMA), and the DNA strand displacement amplification (SDA) are used to identify chlamydia. The major research centers for Chlamydia is NIAID research center at the Institute's Rocky Mountain Laboratories in Hamilton, Montana.