Infective diseases during pregnancy and their teratogenic effects.

TORCH group infections (toxoplasmosis, others, rubella, cytomegalovirus, herpes) are the most serious infectious diseases during pregnancy due to the seriousness of possible embryo-fetal lesions. Rates of transmission and degree of the damage on the product of conception have been described as well as congenital malformation pictures and neonatal illness still observed following to Toxoplasma, HSV, VZV, CMV and Rubella virus infections. Too often, it is very hard to discriminate between primary and recurrent infections in pregnancy, notwithstanding the possible implications. Since at present, neither effective vaccines nor resolutive therapies are available against viral infections, the main means against infection of the foetus still remains the prevention of infections in the pregnant woman.