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Case 2: Prophylaxis for Toxoplasma Encephalitis

You answered:

B The patient should receive prophylaxis for Toxoplasma encephalitis and the dapsone she takes for Pneumocystis prophylaxis will provide adequate prophylaxis against Toxoplasma encephalitis.

This answer is incorrect. The patient does need prophylaxis for Toxoplasma encephalitis, but dapsone alone is not sufficient prophylaxis.

Choose another answer:

A The patient's positive IgG antibody to Toxoplasma shows evidence of immunity to Toxoplasma and thus she does not need prophylaxis against Toxoplasma encephalitis.
C The patient should add atovaquone (Mepron) to the dapsone to provide adequate prophylaxis for both Pneumocystis pneumonia and Toxoplasma encephalitis.
D The patient should receive prophylaxis for Toxoplasma encephalitis. Dapsone alone does not provide sufficient protection against reactivation of Toxoplasma; she should take pyrimethamine in addition to dapsone.

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