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(iv) Bedding, soiled linen, wearing apparel and other articles, including foodstuffs, which, in the opinion of a Health Officer, have been recently infected, shall be disinfected or destroyed at his discretion.
(v) The parts of the vessel or aircraft which have been occupied by the patients or which are considered by such. Health Officer as infected shall be disinfected.
(vi) Unloading of cargo shall be carried out under the supervision of such Health Officer, who will take all measures necessary to prevent the infection of the persons engaged in unloading. They shall be subjected to observation or to surveillance which shall not exceed five days from the time they cease unloading.
(vii) When the drinking water on board is suspected it shall be turned off and emptied out after being disinfected and shall be replaced, after disinfection of the tanks, by a supply of water of good quality.
(viii) Such Health Officer may prohibit the emptying into the port of water ballast which has been taken in at an infected port, unless such water ballast has first been dis- infected.
(ix) Such Health Officer may prohibit the emptying or discharge of human dejecta and of waste waters of the ship into the waters of the port unless such dejecta or waste waters have first been disinfected.
precaution-
ary measures:
54. Vessels or aircraft suspected of cholera shall be Cholera subjected to the measures prescribed under paragraphs (i), (iv), (v), (vii), (viii) and (ix) of the preceding section. The in case of passengers and crew may be subjected to surveillance for & vessels and period not exceeding five days from the date of arrival. aircraft.
suspected
Effect of bacteriolo- gical ex-
55. If any vessel or aircraft has been declared infected or suspected only because of cases on board presenting the clinical features of cholera and if two bacteriological examina- aminations. tions made with an interval of not less than 24 hours between them have not revealed the presence of cholera or any other suspicious vibrios, it shall be classed as uninfected.
precaution-
contact
56. A vessel or aircraft shall be regarded as uninfected Cholera if, although arriving from an infected port or having on board ary measures persons proceeding from an infected area, there has been no in case of case of cholera either at the time of departure from such vessels. infected port, during the voyage, or on arrival. Such vessel or aircraft may be subjected to the measures provided under paragraphs (i), (vii), (viii) and (ix) of section 53. In addition the passengers and crew may be subjected to surveillance during a period which shall not exceed five days from the date of arrival. The crew may be prevented during the same period from leaving the ship or sanitary aerodrome except on duty of which a Health Officer has been notified.
clinically
57.-(1) Cases presenting the clinical symptoms of Cases cholera in which no cholera vibrios have been found or in cholera to which vibrios not strictly conforming to the character of be classed cholera vibrios have been found shall be subjected to all measures required in the case of cholera,
as cholera.