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Toxoplasma gondii antibody assay can demonstrate antibodies within _________ after infection?

A. 2 days
B. 1 week
C. 2 weeks
D. 1 month

1 Answer

1 vote

Final answer:

Toxoplasma gondii antibodies are typically detectable within 1 to 2 weeks post-infection, with the lag period for antibody production being around 10 days.

Step-by-step explanation:

The Toxoplasma gondii antibody assay is designed to detect antibodies indicative of infection and can demonstrate their presence within 1 to 2 weeks after exposure. In the initial week following infection, patients typically do not produce detectable levels of antibodies. This initial lag or latent period for the primary immune response lasts approximately 10 days. During this time, critical steps in the immune response occur, including B cell binding of the antigen, antigen processing, activation of helper T cells and B cells, and clonal proliferation.

After this latent period, IgM levels in the serum start to rise, reaching a peak around 14 days post-antigen exposure. The detection of IgM antibodies is often used as an early indicator of recent infection. The kinetics of antibody production in response to Toxoplasma gondii highlight the sequential and time-dependent events in the immune response following exposure to the pathogen.

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