You're correct. Each of these countries is located in the Yellow Fever-Endemic Zone. I know this because I visited the Centers for Disease Control (CDC) website on Travelers' Health. It's a great resource that details many of the things you need to know about staying healthy when you travel, including recommended vaccinations and preparations. Check it out, and bookmark it for future reference.
My wish for you is that you are lucky or adventurous enough to have someplace exotic and vaccine-requiring in your future travel plans.
NB: I took this photo of a pharmacist in Fez, Morocco a few years ago. Pretty cool establishment, eh?