China says 95% of its 1.34 billion people are covered by medical insurance. That should have included Zhao Guomei, whose struggle with a rare but treatable disease shows how the system is failing for millions of China’s workers. As the WSJ's Liyan Qi and Laurie Burkitt report:

Doctors in July diagnosed Ms. Zhao with aplastic anemia, a bone-marrow condition that put her at high risk of infection. They estimated her treatment would cost at least 400,000 to 500,000 yuan, or roughly $65,000 to $82,000. Despite a lifetime of work, the 26-year-old waitress couldn’t pay for it. Like many of China’s 269 million migrant workers,...