Se você permanecer na zona de trânsito internacional, você não precisa de visto de trânsito :
Airline passengers on authorised regular services in principle do not require an airport transit visa providing they fulfill the following cumulative requirements:
a. they are in possession of a valid and recognized travel document;
b. they do not leave the transit area;
c. they continue their journey by air within 48 hours;
d. they are in possession of the travel documents and visa required for entering the country of destination;
e. they possess an airline ticket for the journey to their destination;
f. and they have booked their connecting flight prior to their arrival at a Swiss airport.