| | Conditions & Treatments | Chlamydia How can you tell if are carrying an STD even have not had intercourse? You cannot contract a sexually transmitted disease (STD) without having sexual contact with an infected person. Chlamydia - Related Articles What Are the Side Effects of Chlamydia? Symptoms of Chlamydia of the Throat Can you catch chlamydia again 4 days after being treated? What is Chlamydea? What is Hydatid disease? What are sister chromotids? Do chlamydia sores go away after treatment?