U.S. intelligence agencies said on Friday they may never be able to identify the origins of COVID-19, as they released a new, more detailed version of their review of whether the coronavirus came from animal-to-human transmission or leaked from a lab.
The Office of the U.S. Director of National Intelligence said in a declassified report that a natural origin and a lab leak are both plausible hypotheses for how SARS-COV-2 first infected humans. But it said analysts disagree on which is more likely or whether any definitive assessment can be made at all.
The report issued on Friday is an update of a 90-day review that President Joe Biden's administration released in August, amid intense political infighting over how much to blame China for the effects of the global pandemic rather than governments that may not have moved quickly enough to protect citizens.
Some U.S. spy agencies had strongly favored the explanation that the virus originated in nature. But there has been little corroboration and over recent months the virus has spread widely and naturally among wild animals. But one agency said it had "moderate confidence" that the first human COVID-19 infection most likely was the result of a laboratory accident, probably involving experimentation or animal handling by the Wuhan Institute of Virology.
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