https://doi.org/10.1351/goldbook.11309
Infection with the parasite \(Toxoplasma\ gondii\) that, when acquired by the fetus, can lead to a variety of congenital abnormalities that may include hydrocephalus or microcephaly, mental retardation, and problems with vision and hearing.
Note: Infection of the fetus is from the mother who may acquire it from contact with feces of the domestic cat or from undercooked meat.