to visit Brazil for up to 90 days to citizens of Russia visa is not required. If you make a flight over Rome by different airlines or to the change of the terminal and the new registration, it is necessary to issue a transit visa to the Italian. If you stay in the transit area, and you will have your boarding pass from Moscow to Brazil, you can not execute a transit Schengen visa within the same airline. We recommend our tourists transit visa in both cases.