That's Parvo shots. You need to give your dog at least 3 shots , three weeks apart. Ideally, you should start them at 6 weeks of age, and give one every 3 weeks until your dog is 16 weeks old
How Many Provo Shots Does A Dog Need To Be Safe?
How many provo shots do a 4 month old pitbull have to have to be safe,and will rib bone be harmful to him?