From MIT TECHOLOGY REVIEW (May 13, 2021):
What’s happening: In a letter in the journal Science, 18 prominent biologists—including the world’s foremost coronavirus researcher—are lending their weight to calls for a new investigation of all possible origins of the virus, and calling on China’s laboratories and agencies to “open their records” to independent analysis.
A controversial theory: A year ago, the idea that the covid-19 pandemic could have been caused by a laboratory accident was roundly dismissed as a conspiracy theory. But the origin of the virus that has killed millions remains a mystery, and the chance that it came from a lab has become the theory that cannot be put to rest....