Infecciones congénitas de baja frecuencia en los neonatos. Algunos aspectos relevantes

this article aims to update a previous study involving approximately 13 diseases acquired transplacentally by the newborn. we did not perform a systematized and detailed description of each condition in this review, but rather we mention some facts that will enable the general practitioner and pediatrician to keep these in mind, using some highlights on the demonstration of the physiopathogeny, clinical or laboratory tests and, even more so, with the probability or certainty that the mother developed any of the diseases during pregnancy. these 13 diseases were selected because 1) some appear in a low frequency worldwide, 2) there are no reported cases in the national literature, or 3) the number of women in mexico of childbearing age experiencing them. it prompts us to think that, based on the frequency of congenital transmission, there should be more cases than what is actually reported.