EXPLAINER: The US investigation into COVID-19 origins
Associated PressWASHINGTON — Once dismissed by most public health experts and government officials, the hypothesis that COVID-19 leaked accidentally from a Chinese lab is now receiving scrutiny under a new U.S. investigation. Former State Department officials under President Donald Trump have publicly pushed for further investigation into virus origins, as have scientists and the World Health Organization. Biden ordered a review of what the White House said was an initial finding leading to “two likely scenarios,” an animal-to-human transmission or a lab leak. The memo also pointed to “gain of function” studies — which in theory could enhance the lethality or transmissibility of a virus — allegedly done at the Wuhan lab with U.S. backing. “The problem is when you make that announcement in a highly politicized environment, it makes it even less likely that China will cooperate with efforts to find the origins of the virus,” said Yanzhong Huang, a senior fellow for global health at the Council on Foreign Relations.