Flying from cuzco to la paz
I am flying from Cuzco to La Paz. I have a bolivian visa but I don't have a yellow fever card/certificate. I will only be in La Paz(only) for a week and then returning to Peru. Do I have to have one for admittance to the country. If I don't, I really don't want to have to pay the extra cash to get one. Any help on this matter would be greatly appreciated!