FIFTYVFOURTH CONGRESS. Sess. II. 011. 383. 1897. 637 health officer, be placed in a conspicuous position or positions within said premises, at such place or places as said health officer may determine; said placards or warning signs shall be displayed as aforesaid until such premises and the contents-thereof are disinfected to the satisfaction of said health officer, as certified by him, and for such time thereafter as may be necessary to demonstrate the ireedom of occupants of said premises from contagious disease, namely, in the case of cholera and yellow fever,_ five days; typhus fever, twenty-one days; smallpox, sixteen days; the plague, fourteen days; and glanders, twenty-one days: Provided, That in addition to or in lieu of the placards QQ; or warning signs provided for above said health officer may station a ` watchman or watchmen at such building or premises for the purpose of securing compliance with the provisions of this Act. Sec. 6. That no person shall in said District, without the written s,,;‘u‘:";.‘°‘;wd6,f‘°·· °* consent of said health officer, handle, deface, obliterate, remove, or inany manner conceal any placard or warning sign displayed as aforesaid; the person in charge of the building or premises where such placard or sign is or has been displayed, and which said placard or warning sign has been to his knowledge deiaced, obliterated, removed, or concealed, shall forthwith report that fact in writing to said health officer unless he has good reason to believe that such placard or sign has been removed by authority of said health officer. Sec. 7. That it shall be the duty of the person in charge of any case I'°'°“°”°‘P**i°"*" of contagious disease in said district to cause such case, immediately upon the discovery thereof, to be removed to a room or rooms on the premises where it occurs, as far as practicable from rooms occupied by other person not affected by such contagious disease; to prevent the entrance into the building in which such sick person is of any person or persons except those dwelling therein at the time of the discovery of such disease therein, the physician or physicians in attendance, the nurse or nurses, and such persons as may be especially authorized in writing by said health officer to enter such building; to properly disinfect or D*°*m`°°**°¤· cause to be properly disinfected all articles in use in the room or rooms in which such sick person is, and all excreta from such sick person before such articles or excreta are removed from said room; and within three days after the complete recovery, the death, or removal of such case, tn caiése the prexlpises in which suchisiclk pegsou gas been and the persons an artic es thereon to e pro r y isin ecte . sag. s. trim me disinfectioiliiequired by rms Act sum be psrrormeu ,,,*},9* ’°* °*·“°° as fo ows: · (A) All dejecta, vomit, and sputum of persons suffering from contagious diseases shall be received and shall remain for not less than one hour in vessels containing a sufficient quantity of an acid solution of bichloride of mercury (bichloride of mercury, one part; hydrochloric acid, two parts; water, one thousand parts), or other germicidal agent which has been approved by said health oillcer. (B) All articles which have been exposed to infection but not included among those enumerated in the preceding paragraph, shall be (a) exposed for not less than thirty minutes to steam at a temperature of not less than one hundred and five degrees centigrade, or (b) boiled for not less than thirty minutes, articles to be disinfected to be completely submerged, or (c) soaked in the acid solution of bichloride of mercury aforesaid for not less than one-half hour, or in a two per centum aqueous solution of carbolic acid for not less than four hours, or in other germividnl solution approved by said health officer, or thoroughly washed with such solution, or (d) exposed to the vapor of formaldehyde or other germicidal agent for such time and in such strength as may be specified by said health officer. (O) Persons who have convalesced from any contagious disease or who have been exposed to such disease shall be thoroughly washed with soap and hot water and spongcd with an acid solution of bichloride of mercury, as follows: Bichloride of mercury, one part; hydrochloric
