Last year, the World Health Organization conducted an investigation into the Wuhan laboratory near where the virus was first detected.
In a surprise statement, Biden announced that the USA intelligence community had delivered a report to him earlier this month on the virus's origins.
Earlier Wednesday, President Joe Biden said he was giving the intelligence community 90 days to produce a report on whether the coronavirus emerged from an infected animal or from a leak at a lab in Wuhan, China.
"I have now asked the intelligence community to redouble their efforts to collect and analyse information that could bring us closer to a definitive conclusion, and to report back to me in 90 days", Mr. Biden said in a statement, adding he had asked that specific questions for China be drawn up with input from USA national labs.
"Ideally you want China to be more cooperative and more transparent", Huang said.
At least 16 dead as extreme weather hits China cross-country race
But the weather caught them off guard, and on the morning of the race Saturday, he already sensed things were not normal. The mountainous race was halted when some of the 172 runners went missing, and a massive rescue operation was launched.
They also point out that, despite widespread efforts, the population from which the virus jumped into humans has never been found, although China continues to deny a leak.
The Wall Street Journal reported this week that USA intelligence indicates three researchers from the lab, which studies bat coronaviruses and their potential to infect humans, became sick enough in November 2019 to seek hospital care.
"The Chinese Communist Party will likely perceive Biden's call for greater clarity on the origins of COVID-19 as part of his administration's overall strategy to win the competition with China", said Bonnie Glaser, director of the Asia Program at the German Marshall Fund of the US, a research group.
According to the release, it is hard to determine which scenario is more likely without more evidence.
China on Thursday rejected new attempts to politicize the origins of COVID-19, repeating that experts from the World Health Organization (WHO) had already concluded that a "lab leak" was "extremely unlikely". One amendment would block USA funding for virus "gain of function" research and the other would prevent US funding for WIV.
The spokesperson slammed the US for opting for politicizing the issue instead of focusing on a scientific approach to tracing COVID-19 origins.
The theory that the killer virus leaked from a Chinese lab was originally fuelled by, among others, the administration of former U.S. president Donald Trump.