Does the eugenic check for syphilis? Eugenic examination checks for toxoplasmosis, rubella virus, cytomegalovirus, and other mycoplasma, chlamydia, or parvovirus infections. These are generally diseases transmitted through the respiratory tract, and if infection occurs, they mainly affect the development of the fetus's brain or eyes, as well as the development of the liver and other internal organs. The test for syphilis, which is a type of sexually transmitted disease, belongs to infectious diseases. The eugenic check does not necessarily concern infectious diseases; it can be contracted through respiratory infection or by consuming contaminated food. However, syphilis is very specific in its transmission, which occurs through blood, mother-to-child transmission, or sexual contact. These two are not the same concept.