Table 1.

Characteristics of infants with congenital toxoplasmosis born to treated and untreated mothers in the United States.

Characteristics	Treated	Untreated
Mothers tested for T. gondii during pregnancy	Yes	No
Diagnosis of acute toxoplasmosis during pregnancy	Yes	No
Mothers treated for T. gondii during pregnancy	Yes	No
Serologic testing for T. gondii IgG, IgM, IgA antibodies performed after birth	Yes	Yes
Clinical signs reported after birth	Yes	Yes
Missing information on clinical signs and serologic test results in some infants	Yes	Yes
Infants in the United States referred to PAMF-TSL for laboratory confirmation of congenital toxoplasmosis	Yes	Yes
Post-natal treatment before diagnosis of congenital toxoplasmosis was confirmed	Yes, at birth	No