You can try this site:
http://www.cruiserswiki.org/wiki/Pets_Aboard
We used to have a book on board with the requirements for each country, but I don't remember the title. Some want a 3-yr rabies shot, others insist on 1 yr., the international
health certificate rules vary, etc. You have to know the exact rules for each country, but it's not that hard to be prepared and avoid hassles.