Though Zika was discovered in 1947, few scientists since had studied the virus. Now, while some check its genes, others turn to placental cells for clues to any link between Zika and birth defects.
For decades, Zika was considered a mild virus that rarely made people ill. Suddenly it seems to be causing serious problems and is spreading across the Americas. Here's the latest news.
Mikhail Kasyanov says he was sitting in a Moscow restaurant when about 10 men burst in, threatened to kill him and then attacked with the baked good. The Kremlin is downplaying the attack.
The Kaesong Industrial Complex is the last remaining show of North-South cooperation, but it's closing indefinitely following the North's recent rocket launch and nuclear test.
Renee Montagne talks to Professor Duane Gubler, who has studied previous outbreaks of the Zika virus. He says if we had paid closer attention to them, Zika might not be at epidemic proportions now.