CD4 and toxoplasmosis: Since there is currently no effective vaccine to prevent toxoplasmosis in human and animals, prophylaxis can therefore be considered the best way to prevent the toxoplasmosis, especially in immunocompromised individuals with a CD4 count below 100 cells/μL as well as in pregnant women who were not previously determined to be seronegative for Toxoplasma Immunoglobulin G (IgG) [8,9].