Many infections, mainly viral, can affect the fetus. In English-language scientific terminology, they are united under the abbreviation "TORCH infection: T - toxoplasmosis, O - others (for example, AIDS, syphilis), R - rubella, C - cytomegalovirus, H - herpes (and hepatitis). Fetal infection with the first five diseases occurs antenatal, herpes and hepatitis - usually postnatal. Antenatal infection with measles.