All are features of Ureaplasma urealyticum except ?
**Core Concept**
Ureaplasma urealyticum is a species of bacteria that belongs to the genus Ureaplasma, which is part of the Mycoplasmataceae family. These bacteria are obligate parasites that can cause various infections, particularly in the genitourinary tract.
**Why the Correct Answer is Right**
Ureaplasma urealyticum is known for its ability to cause urethritis, cervicitis, and other sexually transmitted infections. The bacteria can also be associated with infertility, premature rupture of membranes, and low birth weight in newborns. This is due to its ability to invade the epithelial cells and cause inflammation, leading to the release of pro-inflammatory cytokines and the activation of immune cells.
**Why Each Wrong Option is Incorrect**
**Option A:** Ureaplasma urealyticum is actually associated with infertility and other complications in pregnancy, so this option is incorrect.
**Option B:** While Ureaplasma urealyticum can cause inflammation, it is not typically associated with the formation of abscesses, making this option incorrect.
**Option C:** Ureaplasma urealyticum is not typically associated with the production of a specific toxin, such as tetanus toxin, making this option incorrect.
**Clinical Pearl / High-Yield Fact**
One important aspect of Ureaplasma urealyticum infection is that it can be transmitted vertically from mother to child, leading to neonatal infections and complications.
**Correct Answer: D. Tetanus toxin production.**