THE HONG KONG GOVERNMENT GAZETTE, JANUARY 31, 1936.
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. 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.
or aircraft shall be regarded
"
vessel (3) A suspected "-
(a) in respect of plague :---
Vessels or aircraft when regard- ed as infected.
Vessels or
as
aircraft when regarded as suspected
(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.
period of
3. The period of incubation for the purposes of this Duration of Ordinance shall be five days in the case of cholera, six days incubation, in the case of plague or yellow fever, twelve days in the case of typhus and fourteen days in the case of smallpox.
of release
4.-(1) Any person liable to be subjected to surveillance Conditions shall, as a condition of being exempted from observation, give of observ- a written undertaking to a Health Officer to attend and submit ation of to daily examination at such place and at such time as such persons Health Officer shall appoint.
liable to be subjected to surveillance.
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