Yang Qian, 23, lives with Fabry disease, a rare genetic disorder that causes a deficiency of alpha-galactosidase. In 2020, the drug Replagal became available in China, costing around $1,700 per box. By 2021, it was included in China's national medical insurance catalog – cutting the price to $430 per box. CGTN follows Yang to see how China has built the world's largest health safety net, ensuring that no one is left behind.