When bitten by a family dog and worried about being infected with rabies, how long past the safe period refers to the longest incubation period for rabies, which is considered to be no longer than one year. However, there are still examples of rabies attacks that last more than a year, so although it is considered basically safe to exceed one year, it is not possible to be reassured in an absolute sense. Therefore, if you have been bitten by a domestic dog and are concerned about transmitting rabies to a person, you should be vaccinated against rabies. It is conservatively believed that after five complete injections of the rabies vaccine, the corresponding antibodies will last for a year, but in reality they can last longer than a year. So after being bitten by a family dog, if you do not take the appropriate safety measures, even after a year, there are many people who are still very uneasy and worried about rabies attacks.