A full course of immunization with 3 doses of tetanus toxoid, confers immunity for how many years?
b. 10(Ref: ZAP 157, Nelson's 20/e p 1255> Ghai 8/e p 196-197)In individuals who have completed primary & booster vaccination with DTP, TT boosters every 10 yrs provide sufficient protection.
5
10
15
20
Immunization