Adult-onset Still disease and adenovirus vector COVID-19 vaccination.

Sweeney et al. concluded that ‘Our case highlights a temporal association between adult‐onset Still disease (AOSD) and adenoviral … syndrome associated with AOSD’. We agree that the COVID‐19 vaccine might cause adverse events and the present patient had AOSD after adenovirus vector COVID‐19 vaccination. The exact pathophysiology is still a myth and it is still not possible to have a final conclusion on causal relationship. In reported cases in the literature, there are usually no data on the immunological background of a patient prior to COVID‐19 vaccine receipt. Last, there is also a chance of a concurrent medical disorder. In a vaccine recipient, there might also be a concurrent medical illness such as dengue and the concurrent medical disorder might lead to Still disease. ,

The patient gave consent for presentation of the case.