Placenta previa is a type of condition that occurs when the placenta tends to cover the cervix either completely or partially ...

About 15% of people who experience placental attachments will have this type. This is the most severe form of attachment, where the placenta grows beyond the uterus and may attach to nearby organs ...

"Exposure of placental cells to the NS1 protein of Zika ... whose NS1 protein triggers the formation of tunnels in multiple cell types," Michita said. "Other viruses unrelated to Zika, such ...