Koelnmesse Help (FAQ English) Corona FAQ Technology, hygiene and safety arrangements throughout the trade fair grounds What happens if a person presents symptoms during the trade fair period (incl. set-up and dismantling)? What happens if a person presents symptoms during the trade fair period (incl. set-up and dismantling)? If the typical symptoms of infection are present, it is recommended not to attend the event and to undergo a test. ×