What is placenta accreta? It's a rare condition that affects around 0.2% of pregnancies. Normally, your placenta forms an attachment to the uterine lining, called the endometrium. But if you have ...

"Understanding how Zika virus spreads through the human placenta and reaches the fetus ... the formation of tunnels in multiple cell types," Michita said. "Other viruses unrelated to Zika, such ...