covid 19 origin

By Riley Griffin US intelligence agencies weren’t able to determine whether researchers at laboratory in Wuhan, China, who fell sick in the fall of 2019 were infected with Covid-19, which soon spread around the…

Now, with the global COVID-19 death toll surpassing 5.2 million on the second anniversary of the earliest human cases, a growing chorus of scientists is trying to keep the focus on what they regard as the more plausible “zoonotic,” or…