Please check out the Center for disease control and click on travel medicine. Tetanus and pertussis is always a good idea. Must check with the CDC/Central Africa.

Yes, some vaccines are recommended or required for Central African Republic. The CDC and WHO recommend the following vaccines for Central African Republic: typhoid, hepatitis A, hepatitis B, cholera, yellow fever, rabies, meningitis, and influenza.
for a complete listing go to:

https://wwwnc.cdc.gov/travel/destinations/traveler/none/central-african-republic

Or search other countries as you need.

Oh yes. See your family physician about everything you need. They have updated requirements.