Congenital rubella syndrome is associated with –
**Core Concept**
Congenital rubella syndrome (CRS) is a condition that occurs when the rubella virus infects a fetus during pregnancy, leading to various congenital anomalies. This occurs due to the virus's ability to cross the placenta and infect the developing fetus.
**Why the Correct Answer is Right**
The rubella virus causes CRS by replicating in the fetus's tissues, leading to inflammation and damage. The most common manifestations of CRS include ophthalmological abnormalities, such as cataracts and retinopathy, as well as hearing and vision impairment. The virus also affects the cardiovascular system, leading to patent ductus arteriosus and other cardiac anomalies.
**Why Each Wrong Option is Incorrect**
**Option A:** Congenital CMV infection is a different condition that occurs due to the cytomegalovirus, not the rubella virus. CMV infection in utero can cause a range of congenital anomalies, including hearing and vision impairment, but it is distinct from CRS.
**Option B:** Congenital HIV infection occurs when the mother is infected with the human immunodeficiency virus (HIV) and passes it to the fetus during pregnancy. This condition is different from CRS, which is caused by the rubella virus.
**Option C:** Congenital syphilis is a condition that occurs when the mother is infected with syphilis and passes it to the fetus during pregnancy. While congenital syphilis can cause various congenital anomalies, it is distinct from CRS, which is caused by the rubella virus.
**Clinical Pearl / High-Yield Fact**
To prevent CRS, pregnant women should receive the rubella vaccine before becoming pregnant or as soon as possible after delivery if they are found to be non-immune.
**Correct Answer: D.**