In June, an American scientist discovered that more than 200 genetic sequences from COVID-19 patient samples isolated in China early in the pandemic had puzzlingly been removed... Wuhan University...sequenced a short stretch of genetic material from virus samples taken from 34 patients at a Wuhan hospital. The researchers posted their findings online in March 2020. That month, they also uploaded the sequences to an online database called the Sequence Read Archive, which is maintained by the National Institutes of Health... Bloom became aware of the Wuhan sequences this spring while researching origin of COVID-19. Reading a May 2020 review about...