Inclusion body in psittacosis is called as
**Core Concept**
Psittacosis is a zoonotic disease caused by the bacterium Chlamydophila psittaci, which is transmitted to humans through inhalation of dust contaminated with the feces of infected birds. The disease is characterized by a range of symptoms, including fever, headache, and pneumonia. Inclusion bodies play a crucial role in the diagnosis of psittacosis.
**Why the Correct Answer is Right**
The inclusion body in psittacosis is called a Guarnieri body or a Chlamydia inclusion body. This is a characteristic feature of Chlamydophila psittaci infection, where the bacteria form a distinct inclusion body within the host cells. The inclusion body is a result of the replication of the bacteria within the cytoplasm of the host cells, and it is visible under microscopy. The presence of inclusion bodies is a diagnostic hallmark of psittacosis.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a known inclusion body associated with psittacosis.
**Option B:** This option is incorrect because it refers to a different type of inclusion body associated with a different disease (varicella-zoster virus infection).
**Option C:** This option is incorrect because it is a term used to describe a different type of inclusion body associated with a different disease (tuberculosis).
**Clinical Pearl / High-Yield Fact**
The presence of inclusion bodies in psittacosis is a key diagnostic feature, and it can be visualized using special stains such as Giemsa or Wright's stain.
**Correct Answer: C. Ziehl-Neelsen body is incorrect; correct answer is not given; however, Guarnieri body or Chlamydia inclusion body is correct but not listed.**