Hi, Thanks for your query. Since the bite is on thumb and blood has come out, its cat 3 bite. And since you have received the complete doses of prophylaxis, then you must receive two doses of vaccine on day 0 and day 3, as per WHO. it says... For rabies-exposed patients who have previously undergone complete pre-exposure vaccination or post-exposure treatment with cell-derived rabies vaccines, two intramuscular doses of a cell-derived vaccine separated by three days are sufficient Vaccination status of animal doesn;t guarantees that he has undergone successful vaccination , as there may be chances of vaccination failure also.... Best wishes