"I think China knows that in the early stages of Covid, it didn't do what it needed to do, which was to, in real time, give access to worldwide experts, in real time to share information, in real time to provide real transparency", Blinken said.
US Secretary of State said one result of that failure is that the virus got out of hand faster.
A group of worldwide scientists have also called for a new investigation into the origins of Covid-19 after China and World Health Organization released a scrutinized report concluding that the virus most likely came from wildlife instead of a laboratory.
Blinken said the US government's first responsibility for vaccinations is in the United States.
Blinken said, "When it comes to what we're seeing from the government in Beijing, including with regard to the Uyghurs and the actions it has taken in Xinjiang yes, that's the the right description".
There have been calls for the U.S.to boycott the Olympics over the repression of Uyghur Muslims in China.
Blinken also said he's in contact with European allies about Russian troops deployed at Ukraine's border, which he said were at the highest level since Russia's invasion of eastern Ukraine in 2014. "Because as long as the virus is replicating somewhere, it could be mutating, and then it could be coming back to hit us".
With probes into the origin of the virus still contentious, Blinken said a full understanding of what happened is needed to avoid a repeat.
But he said, "I think we have a significant responsibility and we're going to be the world leader on helping to make sure that the entire world gets vaccinated".
The US, which like most countries has no formal diplomatic ties with Taiwan, has watched with alarm the stepped up tensions with Beijing. And we have a commitment to Taiwan under the Taiwan Relations Act, a bipartisan commitment that's existed for many, many years, to make sure that Taiwan has the ability to defend itself and to make sure that we're sustaining peace and security in the Western Pacific.
"All I can tell you is we have a serious commitment to Taiwan being able to defend itself".
White House spokesperson Jen Psaki told reporters on Friday that Washington has been watching China's aggressive actions against Taiwan very closely and raising concerns about it both publicly and privately.
The tense start to 2021 comes after a report released by a government-backed think tank found that China made a record 380 incursions into Taiwan's defence zone past year.