221399-1935-Supplementary-Public-Heaith-Quarantine-and-Prevention-of-Disease- — Page 15

627

cargo, provided that all precautions, including isolation, are taken to the satisfaction of a Health Officer to prevent rats from passing from the vessel to the shore, either during unloading or otherwise.

(3) The unloading of cargo shall be carried out under the control of a Health Officer, who shall take all measures necessary to prevent the persons employed on this duty from becoming infected. Such persons shall be subjected to observation or surveillance for a period not exceeding six days from the time when they have ceased to work at the unloading of the vessel.

ary measures

49. Plague suspected vessels and aircraft shall undergo Plague the measures specified in section 47 (i) (iv) and (v) and in precaution- section 48. In addition the passengers and crew may be in case of subjected to surveillance which shall not exceed six days vessels or

reckoned from the date of arrival.

suspected

aircraft.

Plague precautions in case of

vessels or aircraft.

50. A vessel or aircraft shall be regarded as uninfected or healthy, notwithstanding its coming from an infected port, if there has been no human or rat plague on board either at contact the time of departure or during the voyage or on arrival, and if the investigations regarding rats have not shown the existence of any unusual mortality.

51. An uninfected or healthy vessel or aircraft shall be Pratique. given pratique immediately with the reservation that a Health Officer may prescribe the following measures in con- nection therewith :-

(i) Medical inspection to determine whether the condition of the ship corresponds to the definition of an uninfected ship.

(ii) In exceptional cases and for wellfounded reasons which shall be communicated in writing to the captain of the vessel, destruction of rats on board under the conditions specified in section 48 (1).

(iii) Subjection of the passengers and crew to surveillance for a period not exceeding six days from the date on which the vessel left the infected port. The crew may be prevented during the same period from leaving the vessel except on duty of which a Health Officer has been notified.

deratisation

52. All vessels and aircraft except those employed in Periodical national coastal service shall be periodically deratised, or be of vessels permanently so maintained that any rat population is kept and aircraft. down to a minimum.

Cholera Precautionary Measures.

53. Cholera-infected vessels and aircraft shall be sub- Cholera jected to the following measures :—

(i) Medical inspection.

precaution-

ary measures in case of infected vessels and

(ii) The sick shall be immediately disembarked and aircraft. isolated.

(iii) The passengers and crew may be kept under observation or subjected to surveillance during a period not exceeding five days reckoned from the date of arrival.

Page 15Page 16