Over 16 million Chinese have signed an open letter calling on the World Health Organization (WHO) to investigate the U.S. Army Medical Research Institute of Infectious Diseases at Fort Detrick.

(Screenshot of the signature page by 4pm July 28)

Published on July 17, the petition appealed to the WHO to investigate the lab and urged the U.S. to answer to the call from people around the world.

(CGTN)