How long does the protection last after a single dose of adsorbed tetanus vaccine?
Feb 22, 2023
Source: Cainiu Health
Dr. Jiang Weimin
Introduction
The protective effect of adsorbed tetanus vaccine usually lasts for three years after injection. Within these three years, the adsorbed tetanus vaccine remains effective, and generally no additional tetanus vaccination is needed if an injury occurs during this period. Pregnant women can protect themselves by receiving the vaccine. However, the protective effect of the adsorbed tetanus vaccine gradually diminishes over time after administration.
Generally, the protective effect of a single dose of adsorbed tetanus vaccine lasts about three years.
The adsorbed tetanus vaccine is primarily a biological product made by artificially combining tetanus toxoid with an aluminum hydroxide adjuvant, used to prevent tetanus infection. After vaccination, the body recognizes the antigen and produces specific immunity against the tetanus virus. Upon subsequent exposure to tetanus toxin, the body can rapidly identify it and mount an immune response to neutralize the released neurotoxin, thus achieving preventive effects. The protection provided by the adsorbed tetanus vaccine typically lasts around three years; during this period, the vaccine remains effective. If an individual sustains an injury within these three years, tetanus vaccination is generally not required. Pregnant women can also benefit from the vaccine, which helps protect their own health.
In addition, over time after vaccination, the protective effect gradually diminishes. After receiving the injection, it is important to care for the injection site properly and avoid consuming spicy foods, seafood, and other potentially irritating foods.
