Your travel medicine provider will issue you an International Vaccination book as a record of your yellow fever vaccination.
You should store this vaccination book safely with your passport. The Yellow Fever certificate is valid for life for most persons vaccinated. ( Those vaccinated as children or with immunosuppressive disorders should speak to their travel doctor.)
WHO report here dated May 2014.
_______________________________________________________________
Designated Medical practitioners: link to register for YFGEN here ( password required ).
