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Rh When an uninfected vessel hailing from a contaminated port arrives in a large maritime port, it is recommended that she be not sent back to another port for the purpose of having the prescribed sanitary measures executed.

In every country, ports open to the arrival of vessels from ports infected with plague or cholera shall be equipped in such a manner that uninfected vessels may, immediately upon their arrival, undergo the prescribed measures and not be sent for this purpose to another port.

The governments shall make known the ports which are open in their territories to arrivals from ports infected with plague or cholera.

36. It is recommended that there be established in large maritime ports:

a) A regular medical service of the port and a permanent medical surveillance of the sanitary conditions of the crews and the inhabitants of the port.

b) Places set apart for the isolation of the sick and the observation of suspected persons.

c) The necessary plants for efficient disinfection, and bacteriological laboratories.

d) A supply of drinking water beyond suspicion for the use of the port, and a system affording all possible security for the carrying off of refuse and sewage.

37. Land quarantines shall no longer be established.

Persons showing symptoms of plague or cholera shall alone be detained at frontiers.

This principle shall not bar the right of each Nation to close a part of its frontier in case of necessity.

38. It is important that travelers be subjected to a surveillance on the part of railroad employees with a view to determining the state of their health.

39. Medical interference is limited to an examination of the passengers and the care to be given to the sick. If such an examination is made, it should be combined as far as possible with the custom house inspection to the end that travelers may be detained as short a time as possible. Only persons who are obviously ill shall be subjected to a thorough medical examination.

40. As soon as travelers coming from an infected locality shall have arrived at their destination, it would be of the greatest utility to subject them to a surveillance which should not exceed ten or five days from the date of departure, according to whether it is a question of plague or cholera.

41. The governments reserve the right to take special measures in regard to certain categories of persons, notably gypsies, vagabonds, emigrants, and persons traveling or crossing the frontier in troops.