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Is a Virus to Blame for Pityriasis Rosea?
Published: Dec 07, 2023
The cause of Pityriasis Rosea (PR) is still debated, with potential links to viral reactivation. Understanding its etiology could lead to better prevention and treatment options.
The Viral Hypothesis
Researchers suspect a viral cause for PR due to its sudden onset and cluster occurrences. Electron microscope studies have found virus-like particles in skin samples, supporting this theory. Human herpesvirus 6 and 7 have been implicated, but evidence remains inconclusive.
Other Possible Culprits
Besides herpesviruses, other viruses like the novel H1N1 influenza and COVID-19 have been considered potential triggers. However, more research is needed to confirm these associations and understand their roles in PR.
Debunking Myths
Despite suspicions, bacterial and fungal causes have been ruled out. The lack of consistent findings across studies highlights the complexity of pinpointing a single cause for PR.
Frequently Asked Questions
PR is suspected to be caused by a virus, but the exact cause is not confirmed.
Human herpesvirus 6 and 7 are commonly linked to PR.
There are reports of flu viruses potentially triggering PR.
The Bottom Line
While the viral hypothesis is strong, further research is needed to confirm PR's exact cause.
References
- Drago F, Ranieri E, Malaguti F, et al. Human herpesvirus 7 in patients with pityriasis rosea. Dermatology 1997; 195:374.
- Mubki TF, Bin Dayel SA, Kadry R. A case of Pityriasis rosea concurrent with novel influenza A (H1N1) infection. Pediatr Dermatol 2011; 28:341.
- Veraldi S, Spigariolo CB. Pityriasis rosea and COVID-19. J Med Virol 2021; 93:4068.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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