In the ECDC's (European Centre for Disease Prevention Control) annual epidemiological report containing 2014 data, 17,278 confirmed giardiasis cases were reported by 23 of the 31 countries that are members of the EU/EEA.
I ECDCs (European Centre for Disease Prevention Control) årlige rapport om epidemiologi med data fra 2014 anføres, at der er registreret 17.278 tilfælde af giardiasis i 23 af de 31 lande, der er medlem af EU og EØS.