[Infectious causes of pregnancy disorders]

During pregnancy infections can entail disorders in many different ways. Damage through direct transmission of pathogens to the fetus occurs in the first place. The organisms are transmitted transovarially, diaplacentally, via endometrium, before or after implantation, via amnion or by the semen when ascending through the infectious environment. Embryo transfer is a new way of transmission. The respective infective microorganisms either directly colonize in the embryo with the well known consequences (fetotrope pathogens) or they colonize the placenta thus indirectly leading to damages to the embryo (placentotrope pathogens). During the process various overlappings are possible. A second large group of disorders in pregnancy is caused by effects of infections of the mother without pathogens being transmitted to the embryo or the placenta. These diseases are postinfectious allergies, immune complex diseases, damages through microbial toxins or mediators and various other forms of infectious processes found with the mother. The third group of disorders in pregnancy is the result of complications caused by vaccinations of the mother during or shortly before pregnancy: postvaccinal allergies, diseases through vaccinal germs and different other postvaccinal damages or stress because of vaccination.