b) Foranstaltningerne inden for iagttagelsesdistriktet opretholdes mindst 30 dage efter fjernelsen af samtlige dyr fra den i artikel 5 omhandlede bedrift samt den indledende rensning og desinficering af denne i overensstemmelse med artikel 10.
b) The measures in the surveillance zone shall be kept in force for at least 30 days after the elimination of all the animals referred to in Article 5 from the holding and the carrying out on that holding of preliminary cleaning and disinfection operations in accordance with Article 10.