Prevalence of Anisakiasis in Madrid (Spain) after 20 Years of Preventive Legislation.

Historical seroprevalence data for in Spain vary greatly depending on the sampling region owing to different fish consumption habits. As a result of European Regulation (EC) No. 853/2004, the Royal Decree 1420/2006 on the prevention of parasitosis by in fishery products supplied by establishments that serve food to final consumers or to communities came into force in Spain.