Vessel.
Vessels or aircraft
when regard- ed as infected.
Vessels or
aircraft
when regarded as suspected
Duration of period of incubation,
Conditions
of release
4
are bound, such authorities being notified by the Health Officer of the advent of the persons in question and of the conditions under which they have been given their freedom.
"Vessel" includes any ship, boat or other description of vessel used in navigation.
(2) A vessel or aircraft shall be regarded as "infected”—
(a) in respect of plague:—
(i) if it has a case of plague on board;
(ii) if a case of plague broke out on board more than six days after embarkation of the person affected; or
(iii) if plague-infected rats are found on board.
(b) in respect of cholera :-
(i) if there is a case of cholera on board; or
(ii) if there has been a case on board during the five days
previous to the arrival of the vessel.
(c) in respect of yellow fever :-
(i) if there is a case of yellow fever on board; or
(ii) if there was a case on board at the time of departure or during the voyage.
(3) A vessel or aircraft shall be regarded as suspected "
(a) in respect of plague :-
(i) if a case of plague broke out on board in the first six days after embarkation of the person affected; or
(ii) if there has been an unusual mortality on board among rats the cause of which has not been determined.
(b) in respect of cholera:
if there has been a case of cholera on board at the time of departure or during the voyage, but no fresh case during the five days previous to arrival.
(c) in respect of yellow fever:
(i) if having had no case of yellow fever on board it. arrives after a voyage of less than six days from an infected port or from a port in close relation with any endemic centre of yellow fever; or
(ii) if having had no case of yellow fever on board it arrives after a voyage of more than six days and there is reason to believe that it may carry winged stegomyia (Aedes Egypti) from any such port.
3. The period of incubation for the purposes of this Ordinance shall be five days in the case of cholera, six days in the case of plague or yellow fever, twelve days in the case of typhus and fourteen days in the case of smallpox.
4.—(1) Any person liable to be subjected to surveillance from observ. shall, as a condition of being exempted from observation, give a written undertaking to a Health Officer to attend and submit persons to daily examination at such place and at such time as such subjected to Health Officer shall appoint.
ation of
liable to be
surveillance.
Pa
Pag
5
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(2) The undertaking shall be in the form in the Schedule, Schedule. or in its equivalent in Chinese characters.
(3) Every failure to comply with the terms of any such undertaking shall be deemed an offence against this Ordin-
ance.
(4) A Health Officer at his discretion may require the person giving the undertaking to furnish security in a sum not exceeding two hundred dollars for the due execution of the undertaking.
Conditions
of release
5.-(1) A Health Officer may require that any contact liable to be detained under observation shall, as a condition from observ- of being released therefrom for the period for which he is so liable, give a written undertaking :-
(a) to attend and submit daily to examination at such place and at such time as such Health Officer may appoint; and
(b) to submit to surveillance at a private residence under such conditions as such Health Officer may impose.
ation of
contacts.
(2) The undertaking shall be in the form in the Schedule, Schedule. or in its equivalent in Chinese characters.
(3) Every failure to comply with the terms of any such undertaking shall be deemed an offence against this Ordin-
ance.
(4) A Health Officer at his discretion may require the person giving the undertaking to furnish security in a sum not. exceeding two hundred dollars for the due execution of the undertaking.
""
of observ- ation for
6. In all cases where this Ordinance refers to surveil- Substitution lance a Health Officer may substitute observation when the persons in question do not offer sufficient security that they surveillance. will faithfully observe all the conditions of the undertaking which those who are granted surveillance are required to give. Such observation may be carried out on board ship or in a quarantine station according to the exigencies of the
case.
evasion.
7.—(1) Any person who is authorised to be detained Escape or under this Ordinance or any regulation made thereunder may in case of escape be arrested by:
(a) any officer or servant of the hospital, reception place, isolated house or quarantine station from which the escape was made;
(b) any officer appointed under this Ordinance; or (c) any police officer;
and may be again conveyed to and detained in the place from which the escape was made or any other place authorised by a Health Officer.
(2) Any person who being subject to surveillance under this Ordinance or any regulation made thereunder fails to present himself for examination or to observe any term of his undertaking may be similarly arrested and detained to the satisfaction of a Health Officer.
(3) Any person who having been authorised to be detain- ed escapes or attempts to escape shall be guilty of an offence against this Ordinance.
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