“These additional data play a major role in that effort,” said Dr. Wolobay.
It is not clear why this valuable information was lost in the first place. Scientists can request the deletion of files by sending an email to the administrator of the sequence read archive. The National Library of Medicine, which maintains the archive, said 13 sequences were deleted last summer.
“These SARS-CoV-2 sequences were submitted for submission to the SRA in March 2020 and were subsequently requested to be withdrawn by investigators submitting in June 2020,” said National Hygiene. Renate Myles, a spokeswoman for the institute, said.
She said an unnamed investigator had informed Archive Manager that the sequence had been updated and would be added to another database. However, Dr. Bloom has searched all the databases he knows, but has not yet found them. “Obviously, I can’t deny that the sequences are somewhere in other databases or web pages, but I couldn’t find them in any of the obvious places I looked up,” he says. I did.
Three of the co-authors of the 2020 test study that created the 13 sequences did not immediately respond to emails inquiring about Dr. Bloom’s findings. The study did not provide contact information for another co-author, Dr. Fu, who was also named in the spreadsheets of other studies.
Some scientists are skeptical that there is something ominous behind the deletion of the sequence. Stephen Goldstein, a virologist at the University of Utah, said:
Dr. Goldstein said the test paper lists the individual mutations that Wuhan researchers found in the test. The complete sequence is no longer in the archive, but important information has been published for over a year, he said. It was hidden in a format that was difficult for researchers to find.
“We all missed this relatively ambiguous treatise,” said Dr. Goldstein.
“I can’t really say why they were removed,” Dr. Bloom admitted in an interview. “It can be said that the practical result of removing them was that people were unaware that they existed.” He also said that the Chinese government had many of the early samples of the virus. He said he ordered the destruction of the virus and banned the publication of papers on the coronavirus without its approval.
Scientists have mysteriously discovered an early coronavirus sequence that has been removed
Source link Scientists have mysteriously discovered an early coronavirus sequence that has been removed