Anne Putto’s1 study in Finland showed that 42% of 110 children with febrile exudative tonsillitis were associated with viruses, and adenovirus (19%) and EBV (9%) were the two most common viral agents. In this study, children did not routinely receive EBV serologic tests unless infectious mononucleosis was suspected, and 10 children were proven to have EBV infection. Viruses played a prominent role in acute exudative tonsillitis and were identified in 47.6% of these children. GAS was isolated more from older children with acute exudative tonsillitis, whereas viruses (81.1%) were isolated mainly from younger children. The most common viral agent was adenovirus (18.7%), followed by EV (16.3%). Most of the species of EV were coxsackie A viruses (12.4%), and there was no EV71 isolated during this study period. No significant seasonal variation was observed for adenovirus, but EV peaked between May and July 2009.