**Question:** Which of the following can infect ovary -

A. Salmonella
B. Pneumonia
C. Hepatitis
D. Cytomegalovirus

**Core Concept:** Ovarian infections are usually caused by microorganisms, which can range from bacteria, viruses, and fungi. Understanding the different pathogens can help in appropriate diagnosis and treatment.

**Why the Correct Answer is Right:**

D. Cytomegalovirus (CMV) is a virus belonging to the Herpesviridae family, which can cause infections in various organs including the ovaries. In women, primary CMV infection usually results in asymptomatic or subclinical disease, but in immunocompromised individuals or fetuses, it can lead to severe complications.

**Why Each Wrong Option is Incorrect:**

A. Salmonella is a bacterial pathogen commonly causing gastrointestinal infections, not ovarian infections.
B. Pneumonia is a respiratory infection caused by bacteria, viruses, or fungi, not specifically targeting the ovary.
C. Hepatitis is an infection of the liver caused by viruses, not typically affecting the ovary.

**Clinical Pearl:**

Understanding the difference between pathogens like bacteria, viruses, and fungi helps in accurate diagnosis and treatment for various infections. Infections of the ovary should raise suspicion for specific pathogens, such as Salmonella for bacterial infections, Cytomegalovirus for viral infections, and fungal infections like Candida for fungal infections.

**Correct Answer:** D. Cytomegalovirus (CMV)

In summary, ovarian infections are caused by a range of microorganisms, including viruses like Cytomegalovirus. Correctly identifying the pathogen is essential for appropriate treatment and prognosis.