Global Health: A Virus Even More Dangerous Than Zika to Pregnant Woman The Zika virus must take the “side roads” into the placenta to infect a fetus, one researcher said — but the Rift Valley fever virus takes the “expressway.” Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Egypt Says It Killed 19 Militants After Deadly Attack on Christians4 Ways World Leaders Have Echoed Trump’s Words and PoliciesSicily Storm Kills 9 Members of 2 Families as Villa FloodsJudith Kazantzis, British Feminist Poet and Activist, Dies at 78As Nigerian Fashion Booms, Women Lead Its CoverageTwo Capitals, One Russian Oligarch: How Oleg Deripaska Is Trying to Escape U.S. Sanctions