Adenovirus causes all except:
**Core Concept**
Adenoviruses are a group of common human viruses that cause a wide range of infections, primarily affecting the respiratory, gastrointestinal, and ocular systems. These viruses have a linear double-stranded DNA genome and are highly contagious, often spread through close contact, contaminated water, or airborne transmission.
**Why the Correct Answer is Right**
Adenoviruses are known to cause a variety of clinical syndromes, including common cold, pharyngitis, conjunctivitis, gastroenteritis, and cystitis. The virus replicates in the epithelial cells of the affected site, leading to inflammation and tissue damage. The immune response, including both innate and adaptive immunity, plays a crucial role in controlling adenoviral infections.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely to be incorrect because adenoviruses are not typically associated with this condition.
**Option B:** This option is incorrect because adenoviruses can cause a range of gastrointestinal symptoms, including diarrhea and vomiting.
**Option C:** This option is incorrect because adenoviruses are a common cause of conjunctivitis, particularly epidemic keratoconjunctivitis.
**Clinical Pearl / High-Yield Fact**
Adenoviruses can cause a range of symptoms, from mild respiratory illness to life-threatening conditions such as hemorrhagic cystitis. It is essential to consider adenovirus in the differential diagnosis of patients with unexplained fever, respiratory symptoms, or gastrointestinal distress.
**Correct Answer:** D