**Question:** All of the following are congenital infection EXCEPT:

A. Cytomegalovirus (CMV)
B. Rubella
C. Syphilis
D. Herpes Simplex Virus (HSV)

**Core Concept:** Congenital infections are infections that occur during pregnancy due to the transmission of pathogens from the mother to the fetus, leading to developmental abnormalities, illnesses, or disabilities in the newborn.

**Why the Correct Answer is Right:** Option A (Herpes Simplex Virus) is not typically considered a congenital infection. While HSV can cause neonatal infections, the primary route of transmission is through direct contact with an infected person or object, such as through sexual contact or exposure to infected genital lesions. In contrast, the other options are primarily known to cause congenital infections due to their mode of transmission:

**Why Option B is Incorrect:** Rubella, also known as German measles, is caused by the rubella virus. It is transmitted through respiratory droplets, contact with infected secretions, or congenital, which means it can be transmitted during pregnancy to the fetus.

**Why Option C is Incorrect:** Syphilis, caused by the bacterium Treponema pallidum, is transmitted through sexual contact. It can lead to congenital syphilis, which presents with severe complications in the newborn. Syphilis is therefore also a congenital infection.

**Why Option D is Incorrect:** Cytomegalovirus (CMV) is a common herpesvirus that can cause congenital infections. It is transmitted through contact with infected bodily fluids, including urine, saliva, and blood, and may lead to severe developmental abnormalities in the newborn.

**Why Option E is Incorrect:** Parvovirus B19 is a small DNA virus that causes a febrile illness known as fifth disease. While Parvovirus B19 can cross the placenta and cause congenital infections, the correct answer is not among the options provided.

**Core Concept:** Understanding the mode of transmission and associated complications of each infection is crucial for identifying and managing cases of congenital infections in pregnant women and newborns.

**Why Option A is the Correct Answer:** Herpes Simplex Virus type 2 (HSV-2), commonly associated with genital herpes, is transmitted through sexual contact. While HSV can cause congenital infections, the primary focus in this question is on the congenital infections caused by the other viruses mentioned.

**Why Option B is Incorrect:** Rubella, also known as German measles, is transmitted through respiratory droplets or direct contact with infected secretions. It can cause congenital rubella syndrome, which features severe developmental abnormalities in the newborn.

**Why Option C is Incorrect:** Syphilis is transmitted through sexual contact or mother-to-child transmission during pregnancy. It can cause congenital syphilis, leading to severe complications in the newborn.

**Why Option D is Incorrect:** Cytomegalovirus (CMV) is transmitted through contact with infected bodily fluids, including urine, saliva, and blood. CMV can cause congenital CMV infection, which