Chlamydia is the most common STI caused by bacteria, but because it's typically asymptomatic, many people can have it and not know it. (Photo: Getty Images) There are more than 20 types of sexually ...

Chlamydia, a sexually transmitted disease, rarely causes symptoms, which means it can go undettected for a long time. Left untreated, chlamydia can cause long-term complications, including infertility ...

Multisite testing of oral, anal, and vaginal sites for Chlamydia trachomatis and Neisseria gonorrhoeae may increase case ...

Add Yahoo as a preferred source to see more of our stories on Google. Koalas are an endangered species. This was not always the case, as the wild, adorable marsupials were once widespread across the ...

The koala (Phascolarctos cinereus) is an iconic marsupial whose survival is increasingly threatened by a range of anthropogenic and environmental pressures. Among these, infection by Chlamydia pecorum ...

Credit: Getty Images / Rodolfo Parulan Jr. If you're sexually active, chances are you've probably worried about STIs at some point. Google is often our first port of call when we're in the midst of an ...

May 7 -- WEDNESDAY, May 6 (HealthDay News) -- Chlamydia infection may play a role in a type of arthritis called undifferentiated spondyloarthropathy (uSpA), a new study finds. This form of arthritis ...

MELBOURNE, Australia (AP) — A regulator has approved a world-first vaccine to protect koalas from chlamydia infections, which are causing infertility and death in the iconic native species that is ...

A new study has identified markers that may predict whether a chlamydia infection is likely to ascend into the uterus and endometrium. The work, published in Infection and Immunity, could lead to new ...