The spread of mosquito-borne Zika virus from South through Central America and into North America, while re-emerging in Africa and Asia, is meeting with resistance from East China. There, particularly in Zhejiang province, mosquito net makers are trying to stem the tide.

Dongren Knitters in Huzhou, Zhejiang, one of the largest makers of mosquito nets for export, has improved its products to try to meet the challenge, General Manager Tong Jian-fang said on Thursday.

The company now infuses the nets with a mosquito repellent to increase users' protection.