Question:easy
Which of the following conditions is NOT caused by Parvovirus B19?
Which of the following conditions is NOT caused by Parvovirus B19?
Show Hint
Roseola is HHV-6/7, not parvovirus B19.
Updated On: Jun 24, 2026
- Roseola infantum
- Aplastic anaemia in sickle cell disease
- Fetal hydrops
- Erythema infectiosum
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Know the virus biology. Parvovirus B19 has a tropism for erythroid progenitor cells, which explains both its anaemic complications and its characteristic exanthem.
Step 2: Tally the true associations. B19 triggers a transient aplastic crisis when it hits patients with ongoing haemolysis like sickle cell disease, it crosses the placenta early in pregnancy to cause hydrops fetalis, and it is the agent of erythema infectiosum, the slapped-cheek fifth disease.
Step 3: Find the impostor. Roseola infantum, also called exanthem subitum or sixth disease, is a herpesvirus illness caused by HHV-6 (and HHV-7), so it has no link to parvovirus B19.
Step 4: Conclude. The disease not produced by parvovirus B19 is roseola infantum.
\[\boxed{\text{Roseola infantum}}\]
Step 2: Tally the true associations. B19 triggers a transient aplastic crisis when it hits patients with ongoing haemolysis like sickle cell disease, it crosses the placenta early in pregnancy to cause hydrops fetalis, and it is the agent of erythema infectiosum, the slapped-cheek fifth disease.
Step 3: Find the impostor. Roseola infantum, also called exanthem subitum or sixth disease, is a herpesvirus illness caused by HHV-6 (and HHV-7), so it has no link to parvovirus B19.
Step 4: Conclude. The disease not produced by parvovirus B19 is roseola infantum.
\[\boxed{\text{Roseola infantum}}\]
Was this answer helpful?
0
