To investigate the association between subacute thyroiditis (SAT) and viral infections, particularly enteroviruses and SARS-CoV-2, during the COVID-19 pandemic.
Key Findings:
Confirmed higher incidence of SAT in women and a seasonal peak in late summer.
In 2020, a marked reduction in enteroviruses and other pathogens was observed due to hygiene measures, but SAT seasonality remained unchanged.
No significant association was found between SAT and any analyzed viruses, including echoviruses, coxsackieviruses, and SARS-CoV-2, indicating that these viruses do not trigger SAT.
Interpretation:
The study suggests that despite the seasonal patterns of certain viruses, they are not causative factors for SAT, and the pandemic did not alter the incidence of SAT, highlighting the need for further research into the etiology of this condition.
Limitations:
The study relies on registry data, which may not capture all cases of SAT, particularly milder cases.
Potential confounding factors related to viral infections and autoimmune responses, such as genetic predispositions and environmental triggers, were not fully explored.
Conclusion:
The findings indicate that viral infections, including those associated with the COVID-19 pandemic, do not appear to trigger SAT, reinforcing the need for further research into the etiology of this condition.
