U.S. intelligence agencies, releasing a more detailed version of their review of the origins of the coronavirus responsible for COVID-19, said Friday that they might never be able to determine the answer.
The Office of the U.S. Director of National Intelligence (ODNI) said in a declassified report that animal-to-human transmission and a leak from a lab 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 dismissed suggestions that the coronavirus originated as a bioweapon, saying proponents of this theory "do not have direct access to the Wuhan Institute of Virology" and have been accused of spreading disinformation.
The report was 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 their citizens.
China responded on Friday by criticizing the report.
"The U.S. moves of relying on its intelligence apparatus instead of scientists to trace the origins of COVID-19 is a complete political farce," Liu Pengyu, a spokesperson for the Chinese Embassy in Washington, said in an emailed statement.
"It will only undermine science-based origins study and hinder the global effort of finding the source of the virus," the statement said.
Former Republican President Donald Trump — who lost his bid for reelection as the deadly pandemic ravaged the U.S. economy — and many of his supporters referred to COVID-19 as the "China virus."
Spreading among wild animals
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.
The ODNI report said four U.S. spy agencies and a multi-agency body have "low confidence" that COVID-19 originated with an infected animal or a related virus.
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.
U.S. spy agencies believe they will not be able to produce a more definitive explanation for the origin of COVID-19 without new information demonstrating that the virus took a specific pathway from animals to humans or that the Wuhan laboratory was handling the virus or a related virus before COVID-19 surfaced.
The report said U.S. agencies and the global scientific community lacked "clinical samples or a complete understanding of epidemiological data from the earliest COVID-19 cases" and said it could revisit this inconclusive finding if more evidence surfaced.
Global criticism
China has faced international criticism for failing to cooperate more fully in investigations of COVID-19's origins.
The embassy statement also dismissed that criticism.
"We have been supporting science-based efforts on origins tracing and will continue to stay actively engaged. That said, we firmly oppose attempts to politicize this issue," it said.
