Koelnmesse Help (FAQ English) Corona FAQ Access Control Covid Current: Prior to arrival / General questions Prior to arrival / General questions What do I need to enter the trade fair grounds? Where do I find test sites? How much does an antigen/PCR test cost in cologne? How long is an antigen/PCR test valid? I have cold symptoms, but my Covid test result is negative. May I enter the trade fair grounds? I have tested positive ×