3(1)Notwithstanding the repeal by this Act of section 147 of the Public Health Act 1936 (which empowered local authorities to extend the category of notifiable diseases) any order made under that section which was in force immediately before the coming into operation of the repeal—
(a)shall continue to have effect notwithstanding the repeal of that section, and
(b)may be varied or revoked by an order made and approved in the like manner as the original order, except that it shall not be varied otherwise than by excluding a disease from it.
(2)Where such an order continues to have effect by virtue of sub-paragraph (1) above, any reference in the order which (being originally a reference to Part V of the Public Health Act 1936) was, by virtue of section 52(2) of the [1968 c. 46.] Health Services and Public Health Act 1968, to be construed as a reference to section 48 of that Act shall be construed as a reference to section 11 of this Act.