The Change of the Tetanus Antibody Titer After Single Injection of Td and Simultaneous Injection of TIG With Td
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The investigators want to determine whether TIG influences the formation of tetanus antibody after simultaneous tetanus vaccination according to age and the time-interval of the last tetanus vaccination.
Condition or disease
When an injured patient visits the ED, unnecessary injection of tetanus immunoglobulin (TIG) may cause side effects and also increase the medical expense.5 Further, the opportunity of assessing a rising tetanus antibody titer may be missed after simultaneous injection of tetanus-diphtheria vaccine (Td) and TIG. According to age, the elevation of the tetanus antibody titer after tetanus prophylaxis might be not equivalent because of different levels of basal immunity and the time-interval of the last tetanus vaccination. Therefore, we wanted to determine whether TIG influences the formation of tetanus antibody after simultaneous tetanus vaccination according to age and the time-interval of the last tetanus vaccination.
The change from baseline in tetanus antibody titer at 4weeks, 6 months and 12months [ Time Frame: Baseline, 4 weeks, 6 months, 12 months ]
The tetanus antibody titers were determined by ELISA and the results were reported in IU/mL. The measurement of tetanus antibody titer at 4 weeks should be needed to check the peak titer after vaccination. the change of tetanus antibody titers were calculated by geometric mean titers(GMTs), and we compared the GMTs between the groups(Td vs Td-TIG)at baseline, 4weeks, 6months, and 12 months by independent T-test.
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