Finally got around to it and went ahead and got my second vaccine shot, the one against the Yellow fever, named Stamaril. May I remind you that it is the only mandatory vaccine, as it is the only one that can be required by customs and immigration when you travel.
The shot must be administered in an International Vaccination Center. For me it was done at the university Hospital in Reims at Hospital Robert Debré. The shot are only given once a week on Tuesdays between 2 and 3pm.
Once you have gotten your shot, they give you a small Vaccination “passport”, which can open the door in certain countries.
At the Hospital Robert Debré, the consultation, the Stamaril vaccine and the Vaccination “passport” , costed me 34.98 Euro so about 48 US $.