WASHINGTON - U.S. officials said an unclassified version of a review on the origins of COVID-19 sought by President Joe Biden is expected to be released for the public within "several days," as China accused the country of politicizing the issue.In late May, Biden ordered a 90-day review by intelligence agencies of theories about the origins of the coronavirus, including whether the virus could have leaked from a lab in the Chinese city of Wuhan where it was first detected in late 2019.