The rabies vaccine is not effective with one shot. The rabies vaccine requires five shots to effectively stop the spread of rabies. After the rabies vaccine enters the human body, it stimulates the body to produce antibodies against the rabies virus, and only one shot cannot form stable and effective antibodies to stop the spread of rabies. The procedure for getting five shots of rabies vaccine is to give one shot on the day of the dog bite, and another shot on the third, seventh, fourteenth and thirtieth days. If you can’t get the rabies vaccine in time after the dog bite, you can also get the rabies vaccination as early as possible afterwards, and you need to get enough shots to form a full immunity.