کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3398655 1222309 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of human antibody responses to diphtheria toxin subunits A and B in various age groups
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی میکروب شناسی
پیش نمایش صفحه اول مقاله
Evaluation of human antibody responses to diphtheria toxin subunits A and B in various age groups
چکیده انگلیسی

ABSTRACTThis study aimed to evaluate human antibody responses to diphtheria toxin subunits in various age groups. Antibodies against the intact diphtheria toxin and the diphtheria toxin subunits A and B were evaluated in 1319 individuals using a double-antigen ELISA. Although high levels of protection (83.6%, 95% CI 79.2–87.4) were found in children and adolescents, the middle-aged adult population was less protected (28.8%, 95% CI 24.3–33.6). An increase in age was associated with a decrease in the frequency of protected individuals in the 0–39-year age group (p <0.001). Anti-subunit B levels correlated well (p <0.01) with levels of antibodies against the intact toxin. In children aged ≤16 years, the intervals at which the peaks in geometric mean titres of anti-subunit B antibodies were observed were found to correlate with the ages at which booster doses are administered. Overall, males appeared to be more protected than females (OR 1.67, 95% CI 1.34–2.08, p <0.001). A small group of individuals had antibody levels of ≥0.1 IU/mL against the intact toxin, but did not have protective antibody against subunit B. Determination of anti-subunit B antibody levels should help in evaluating the effectiveness of diphtheria boosters and other aspects of diphtheria immunity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Microbiology and Infection - Volume 13, Issue 11, November 2007, Pages 1065–1071
نویسندگان
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