COVID-19 May Reactivate Dormant Viruses, Linking to Long COVID Symptoms
A growing body of research suggests that COVID-19 may wake up viruses that typically remain dormant in the body. Studies have found that infection can reactivate Epstein-Barr virus, cytomegalovirus, and several members of the herpes virus family in some patients.
The findings are particularly significant because one viral family—still poorly understood—was strongly associated with long COVID symptoms and lasting disability in affected individuals. This connection may help explain why certain patients experience prolonged health problems after their initial infection clears.
Researchers note that viral reactivation could be one piece of a larger puzzle regarding long COVID's underlying mechanisms. Understanding how dormant viruses factor into post-acute sequelae may eventually inform treatment strategies, though more work is needed to determine how these reactivations contribute to symptoms and whether addressing them could aid recovery.
The study highlights the complex interplay between SARS-CoV-2 and the existing viral ecosystems within the human body, suggesting that long COVID may not stem from a single cause but rather from multiple pathways affecting different patients.