Hi,Good day. Please my sister is traveling from Nigeria (Lagos) to Canada through Turkish Airlines and she has two stops. Lagos to Istanbul airport ( 1st stop, layover 1hour, 40minutes) then move from Istanbul to Dublin (2nd stop, layover 3hours 30minutes, self transfer, collect and recheck baggage) then move from Dublin to her destination with WestJet. Please does she need a transit visa in this two stops? Please I need help and I will be very grateful, thank you.