Half the antibodies generated by tetanus vaccine lasted no less than 14 years, which is longer than previously thought (This is known as the half-life.)
However, research published in Clinical Infectious Diseases points to the possibility that these regular boosters may not be necessary for adults who've been childhood vaccines.
A study on 546 adults found the vaccine provides at least 30 years of immunity.
"Your body will also remember tetanus, even if you are low on antibodies"
"Your body will immediately see it as foreign, and then your B-cells, which are antibody-manufacturing cells, will crank out antibodies as soon as the threat comes on."
Doctors can still advise giving it every decade as.