Plz clear my doubt. During play scratch!

After play scratching  some one a dog died anyday between 28-40. At the time of play scratch he was not drooling. No nervousness no bitting issue was observed in him. He was roaming playing with all the other dogs. His eating and drinking status is unknown as he was stray dog but I twice gave him food he ate. His active non lethargic non bitting status was also observed for next 16days after that play scratch . Then I left  society. Then he was also observed by others for next 12 days in same active freely roaming condition with other dogs in society. He was neither drooling nor bitting anyone in those period also. He died above roof of 3rd floor so we can assume that he was not paralytic condition as he climbed up the stairs. The society is so small and there are plenty of kids playing in the street where no bitting incident was reported during that time. So if I assume the dog was died of rabies what is the chance he had rabies in saliva 28day before during play scratch