A positive or reactive HBsAb (or anti-HBs) test result indicates that a person has successfully responded to the hepatitis B vaccine or has recovered from an acute hepatitis B infection. This result means that you are immune to future hepatitis B infection and you are not contagious.
A puppy should have their first shots when they are 6 weeks. I prefer giving my pups shots early at 4-5 weeks of age just in case you are in high risk area for catching parvo then follow up shots every 3 weeks after til 12 - 15 weeks of age .
At six weeks pups are NOT yet ready to have their first set of booster shots. I like to wait till they are seven or eight weeks old. Booster shots should be done a few days before the pup leaves for his/her new home, not on the same day. At this time the pups can also be tattooed and/or microchipped.