(3)The Chief Municipal Officer may, on being satisfied that it is in the public interest so to do, by order, in writing, direct that any lodging house or any place in the municipal area where articles of food and drink are sold, or prepared, stored or exposed for sale, being a lodging house or place in which a case of dangerous disease exist or has recently occurred shall be closed for such period as may be specified in the order:Provided that such lodging house or place may be declared to be open, if the Municipal Health Officer certifies that it has been disinfected or is free from infection.