An online petition for a thorough investigation of a biological laboratory at Fort Detrick in the US concluded on Friday, garnering 25 million signatures in just three weeks.

由一批中国网友委托 环球时报　发起的、要求彻底调查美国德特里克堡生物实验室的联署活动于8月7日零时结束，三周内共2500万人签名。

The petition, which a group of Chinese internet users drafted and entrusted the Global Times to post on social media, was launched on July 17 and received 500,000 signatures in 24 hours and 1 million in 48 hours.

该活动7月17日在社交媒体上启动后，24小时内即获50万人签名，48小时内签名人数就超过100万。

The investigation should look at the origins of COVID-19 as related to the Maryland laboratory as well as the laboratory's safety, the organizers said.

组织方称，网民要求就新冠病毒溯源问题调查位于美国马里兰州的德特里克堡生物实验室，与此同时还要调查实验室安全性问题。

Chinese Foreign Ministry spokesman Zhao Lijian said on July 26 that the US needs to explain why it remains silent on opening the Fort Detrick laboratory to an investigation.

外交部发言人赵立坚7月26日表示，美方为何在开放德特里克堡调查的问题上保持沉默，必须给世界一个交代。

【2500万人签名要求调查德特里克堡查看网站：[db:时间]】