What is treponenema pallidum?

Treponema pallidum is a spirochete bacterium responsible for syphilis, a sexually transmitted infection. It is characterized by its corkscrew shape and motility, allowing it to penetrate host tissues. The bacterium is primarily transmitted through sexual contact, but can also be passed from mother to child during pregnancy. Treponema pallidum is typically treated with antibiotics, such as penicillin.