Immunity to tetanus among adults in Turkey

Area of Science:

• Immunology
• Public Health
• Epidemiology

Background:

• Tetanus remains a significant public health concern globally.
• Maintaining adequate antitetanus immunoglobulin levels is crucial for preventing tetanus infection.
• Age and vaccination history are known factors influencing immunity.

Purpose of the Study:

• To assess antitetanus immunoglobulin levels in adults residing in Ankara, Turkey.
• To identify demographic factors associated with protective tetanus immunity.
• To evaluate the impact of vaccination timing on antibody levels.

Main Methods:

• Enzyme-linked immunosorbent assay (ELISA) was used to measure antitetanus immunoglobulin levels.
• A cohort of 100 individuals over 18 years old from urban and rural areas participated.
• A questionnaire gathered data on demographics and vaccination history.

Main Results:

• Overall, 68% of subjects had protective tetanus antibody levels (> 0.01 IU/ml).
• Immunity significantly decreased with age, with only 35.7% of those > 50 years protected.
• Individuals vaccinated within the last 10 years showed higher antibody levels than those vaccinated longer ago.

Conclusions:

• A significant proportion of the adult population in Ankara, particularly the elderly, exhibit inadequate protection against tetanus.
• Age is a critical factor in waning tetanus immunity.
• Regular tetanus booster vaccinations are recommended, especially for older adults, to maintain protective antibody levels.