Can a Tetnus shot affect your blood?

A tetanus shot, which is a vaccine, is designed to stimulate the immune system to produce antibodies against the tetanus toxin. It does not directly affect the blood itself but can lead to a temporary immune response, which may include mild side effects such as soreness at the injection site, low-grade fever, or fatigue. These reactions indicate that the body is building immunity, but the vaccine does not alter blood components or function.