The association between toxoplasmosis and psychiatric disorders has been reported in a few anecdotal reports.
A case of depression with toxoplasma seropositivity is presented. The patient with depression showed poor response to antidepressants, for which he was investigated and was found positive on the serological test for the toxoplasma. The response to antidepressant treatment improved only after adequate treatment for toxoplasma.
The case suggests a probable association between toxoplasmosis and depression.