A former Denmark football international recently traveled to Amsterdam and there in the Dutch city he contracted coronavirus.
Thomas Kahlenberg, who has represented his country at the 2010 World Cup, then returned to Denmark and went to watch his old club Brøndby play against Lyngby at Brøndby Stadium last weekend.
It's series of events that has Danish health authorities now scrambling to find out who the 36-year-old has been in contact with. It's also as case that demonstrates the myriad challenges that are being posed to health authorities as they try to a grip on the outbreak.
