I will be travelling with a family member from Dublin, Ireland to Nice, France at the end of next month in November. She is a Kenyan citizen but already has a Schengen visa that lasts until March 2019 so we figured that we don't need any more paperwork.
I see when trying to locate tickets that some offer a layover in Zurich. We are a bit worried if she'd need a transit visa because some countries require one. She tells me that Switzerland is not in the Schengen area and thus, she might need a visa when transiting. Is this true or not? Thanks