Елена Евгеньевна,
в порядке дискуссии: в данной публикации пик антител класса А был на сроке от 2-21 недель и у каждой второй были положительны на сроке от 21 до 52 недель после заболевания:
The times elapsed after infection until the peak was reached also varied greatly from individual to individual: the ranges were 2 to 21 weeks for the dye test, 4 to 36 weeks for Platelia Toxo-IgG, 4 to 30 weeks for Toxo-Screen DA IgG, 2 to 18 weeks for Platelia Toxo-IgM, 1 to 6 weeks for Toxo-ISAGA IgM, and 2 to 21 weeks for Platelia Toxo-IgA... Of the sera collected 21 to 52 weeks after infection, all were positive by the dye test, all except one (which was negative by Platelia Toxo-IgG) were positive by the specific-IgG tests, approximately 80% were positive by the IgM tests, and 45% were positive by the IgA test.
J Clin Microbiol. 1998 Oct;36(10):2907-13.
Development of specific immunoglobulins G, M, and A following primary Toxoplasma gondii infection in pregnant women.
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но нет в них диагностической нужды в данной ситуации:
Specific-IgA analysis is not an important contributor to a correct diagnosis, since a negative result does not exclude, nor does a positive result confirm, a recent primary T. gondii infection.
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