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