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The Watermark Thing Was Cool, But This Sounds More Reliable

A study out of the Lawrence Livermore National Lab published recently in Genome Biology has identified a set of DNA oligomers that can be used as part of DNA signatures to tell plasmid vectors from natural plasmids and bacterial genomes. Carl Zimmer explains the work in a Wired blog post: "There are sets of DNA segments measuring just a few dozen base pairs long that are found in almost every known vector and in no natural genomes. The scientists ... could identify vectors 98 percent of the time." The work, he says, could be useful for detecting engineered bioterrorist pathogens.

The Scan

Another Resignation

According to the Wall Street Journal, a third advisory panel member has resigned following the US Food and Drug Administration's approval of an Alzheimer's disease drug.

Novavax Finds Its Vaccine Effective

Reuters reports Novavax's SARS-CoV-2 vaccine is more than 90 percent effective in preventing COVID-19.

Can't Be Used

The US Food and Drug Administration says millions of vaccine doses made at an embattled manufacturing facility cannot be used, the New York Times reports.

PLOS Papers on Frozen Shoulder GWAS, Epstein-Barr Effects on Immune Cell Epigenetics, More

In PLOS this week: genome-wide association study of frozen shoulder, epigenetic patterns of Epstein-Barr-infected B lymphocyte cells, and more.