Aircraft coming from an infected local area which have already been subjected to satisfactory sanitary measures shall not be subjected to these measures a second time on arrival at another aerodrome, whether the latter belongs to the same country or not, provided that no subsequent incident has occurred which calls for the application of the sanitary measures in question and that the aircraft has not called at an infected aerodrome except to take in fuel.
article 55
Certificate from aerodrome authority; contents. The aerodrome authority applying sanitary measures shall, whenever requested, furnish free of charge to the commander of the aircraft or any other interested person a certificate specifying the nature of the measures, the methods employed, the parts of the aircraft treated, and the reason why the measures have been applied.
The authority shall also issue, on demand and without charge, to passengers arriving by an aircraft in which a case of one of the infectious diseases referred to in article 18 Ante, p. 3287.has occurred, a certificate showing the date of their arrival and the measures to which they and their luggage have been subjected.
article 56
Detention of aircraft for sanitary reasons. Save as expressly provided in the present convention, aircraft shall not be detained for sanitary reasons.
If an aircraft has been occupied by a person suffering from plague, cholera, yellow fever, exanthematous typhus, or smallpox, its detention shall be limited to the period strictly necessary for it to undergo the prophylactic measures applicable to the aircraft in the case of each disease referred to in the present convention.
