Extremely common, and highly contagious upon unprotected contact, chlamydia is a sexually transmitted infection (STI) infecting humans and animals, and even amoeba. Chlamydia is the most frequently reported bacterial STI in the United States, with approximately 2.86 million infections recorded annually. However, a large number of cases are not reported as most people with chlamydia do not realize they are carriers, with untreated Chlamydial infections … Continue reading A new species of Chlamydia discovered that doesn't need a host.