Chad, May 17 -- In the mountainous county of Qiongzhong in central Hainan province, south China, drones are revolutionizing rural healthcare by transporting medical samples, emergency supplies, and medications between remote villages and county hospitals.

A new low-altitude medical network now connects all 15 township health centers across the county through four drone routes spanning 205 kilometers. Since its launch, medical delivery times have been reduced by 50 percent.

For residents like Cheng Chuanhe from Sihe village in Zhongping township, this innovation has proven life-changing.

When Cheng sought treatment for severe leg cramps at the township clinic, doctors suspected low calcium levels but lacked testing equipment. Previously...