Just a few days ago, Professor de Luca in Paris showed a paper with a scientific evidence of vertical transmission of Sars-Cov-2. An excellent (although sad) news by an excellent professor. Coincidentally, yesterday the National Perinatal Institute, in Mexico made a webinar about this topic. In this slide, what you can see,   they are showing in the left, that 17 of 86 placenta tested positive to Covid PCR; that 11 of 22 amniotic fluids tested positive and that 6 of 17 human milk the same. All in mothers positive to Covid-19. Hope this will be of interest for you all.

https://journals.lww.com/pidj/Abstract/9000/INTRAUTERINE_TRANSMISSION_OF_SARS_COV_2_INFECTION.96099.aspx

A case report of likely vertical transmission as well.