Background: Viral acute respiratory infections (ARIs) are an important cause of illness in athletes. However, their impact on ice hockey players is unclear.

Method: We describe an outbreak of ARIs in a professional ice hockey team.

Results: Contrary to expected influenza, the 40-day outbreak was caused by 8 different respiratory viruses, that is, 2 different influenza A viruses, human coronavirus-NL63 (HCoV-NL63), respiratory syncytial viruses (RSV) A and B, 2 different rhinoviruses, enterovirus D68, and parainfluenza type 2 virus.

Conclusion: Only influenza A and HCoV-NL63 were possibly spread within the team thus suggesting an important contraction from the community. The burden of illness was substantial.