The Zika virus, which has been found to cause severe birth defects, has spread across the Americas, prompting the World Health Organization to declare a global health emergency.

As more people in China practice religion, the government continues to toughen oversight, increase religious persecution, and attempt to co-opt state-sanctioned religious organizations.

Tens of millions of Chinese now identify as Christians, and the number has grown rapidly, posing challenges for a government that is officially atheist and wary of threats to its power.