Hi Darlene
We brought our cats to Belize from Edmonton back in August this past year. Go on-line to BAHA (Belize Animal Health Authority) and print off the form they have there for moving cats and dogs to Belize. It will tell you the health requirements you need. Then, no more than 6 months before you are ready to leave, get the vaccines. Send a copy of the vaccine certificate and a completed copy of the application to bring the cat to Belize to the BAHA to get it stamped for approval. Do this part well in advance of coming, and you may have to follow up several times to get it done. They say it doesn't take long, but it does. We didn't have that much time, so my husband finally came to Belize and took it personally down to BAHA get the approval. Even that took a week, and he only got it in the end by sitting in their office until it was ready. Then, when you have the approval and not more than 10 days before you are ready to leave, get the vet to do a complete check-up on the cat and complete the international travel forms (the vet should have the forms). If the cat is over 5 years old, you need to get the vet to put on the form that the animal's heart and lungs are in good health and it is healthy enough to fly (there are no places on the form to put that information, so the vet has to enter the information in the comments area). That is required by the airlines, which I did not know until later, and I had to make another trip back to the vet for that. Then, put all your paperwork together (rabies vaccine certificate, health certificate, and approval to enter Belize) and take it down to your local CFIA (Canadian Food Inspection Agency) (CFIA is the Canadian version of FDA) and get them to certify everything. I believe that was about $30. Once that is all done, call Pet Travel to get a waybill number if you are shipping the cat via cargo (get their Canadian number from your local United Airways Cargo office, as the people at the number listed on-line don't seem to have any idea where Alberta, Canada is, and they definitely don't know where Edmonton, Alberta Canada is!). If you are bringing your cat with you as a carry-on, check with the airline to see if you need to pay anything extra. Then you are all set to go. Attach the original copies of all your documents to the carrier, and bring a copy of all the documents with you. You will need these documents on arrival in Belize.
I hope this information saves you some time and eases the frustration. I learned the hard way and had to take two steps forward, one step back all the way through, because no one would volunteer complete information. Every time I went to the next step, I would be missing some information required for that step and have to go back where I was before to get the missing part just because the previous person didn't volunteer that I needed more info than I had asked for.
(Just for the record, I had to send my cats and dog back to Canada later because they couldn't adjust to the heat here, but they were all over 12 years old. Your cat has already been to Africa, so could probably tolerate the heat.)