The Ministers may make such orders as they think fit for prescribing the cases in which places and areas are to be declared to be infected with a disease and the authority, mode, and conditions by, in, and on which declarations in that behalf are to be made, and their effect and consequences, and their duration and discontinuance, and other connected matters.

Every place or area so declared infected shall be an infected place or area for the purposes of this Act.

A notice served in pursuance of directions of the Minister or of a local authority by virtue of an order made under this section shall be conclusive evidence to all intents of the existence or past existence or cessation of the disease, or of the error, and of any other matter on which the notice proceeds.

Notwithstanding anything in this Act, a defined part of a port or aerodrome, or any part thereof, shall not be declared to be an infected place, or be made part of an infected place, otherwise than by the Ministers.