Which sexually transmitted infection is caused by the bacteria Treponema?

The correct answer is syphilis, which is indeed caused by the bacteria Treponema pallidum. This organism is a spirochete, a type of bacteria characterized by its spiral shape, which plays a significant role in the pathogenesis of syphilis. The infection progresses through several stages—primary, secondary, latent, and tertiary—each of which can present with distinctive signs and symptoms, such as sores, rashes, and potential systemic issues if left untreated.

Understanding the biology of Treponema pallidum is crucial in the context of public health, as syphilis can lead to serious complications if not adequately treated. Early detection and treatment with antibiotics, specifically penicillin, can effectively cure syphilis, making awareness of this infection important in sexual health education and preventive measures.