'FBI Director Christopher Wray confirmed that the Bureau has assessed that the origins of the COVID-19 pandemic likely originated from a lab incident in Wuhan, China,' tweeted the FBI.
The move comes in the backdrop of a Radio Free Asia report that nearly 250 million people in China may have been affected by COVID-19 in just 20 days after the 'zero-COVID policy' was diluted in the first week of the month.
It is certain that the Chinese government was 'under-prepared' as it decided to end its zero-COVID policy abruptly after people held protests across the country, The Hong Kong Post reported.
"We continue to call on China to be transparent in sharing data and to conduct the necessary investigations and share the results. Understanding how the pandemic began remains both a moral and scientific imperative," Ghebreyesus said.
The city has prepared a 10-day plan to test all its residents after six new coronavirus cases were reported in a residential community.
The expose, which was in Chinese, said that the Chinese Communist Party was covering up the COVID-19 crisis and there was a human-to-human transmission of the virus.
Since the trial participants were not exposed to the coronavirus after vaccination, the scientists said it is not possible for the current study to determine the efficacy of the candidate vaccine.
The reality is, the worldwide toll could have been checked within time if China had been more transparent and had warned countries regarding the new strain of Severe Acute Respiratory Syndrome (SARS)-like infection, which originated at a 'wet market' in its province of Hubei late last year.