TL;DR:

Samples from early Wuhan COVID-19 patients show the presence of genetically modified Henipah virus, an American scientist has found. Henipah was one of the two types of viruses sent to China by Chinese-born scientists from a Canadian laboratory at the centre of a controversy over the firing of the scientists and collaboration with Chinese military researchers. It is not clear whether the virus found in the Chinese samples is related to the virus samples sent by the Canadian lab, which were shipped in late March 2019.

The evidence was first found by Dr. Steven Quay, a Seattle-based physician-scientist and former faculty member at the Stanford University School of Medicine, who looked at early COVID-19 samples uploaded by scientists at the Wuhan Institute of Virology (WIV) shortly after China informed the World Health Organization about the SARS-CoV-2 outbreak.