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That Ubiquitous Bar Code

Those matrix-like bar codes that have popped up recently, may soon also be found on a research poster near you. QR codes, or quick response codes, can be read by bar code readers and smartphone cameras. Jay Buckley at PosterSession.com's blog — PosterSession.com prints posters — says that he's seen posters with QR codes. "What's cool is that you can have the code point to your bio page (they can contact you about a job) or page where your poster is uploaded (no more handouts required)," he writes.

The Scan

Gone, But Now Reconstructed SARS-CoV-2 Genomes

In a preprint, a researcher describes his recovery of viral sequences that had been removed from a common database.

Rare Heart Inflammation Warning

The Food and Drug Administration is adding a warning about links between a rare inflammatory heart condition and two SARS-CoV-2 vaccines, Reuters reports.

Sandwich Sampling

The New York Times sent tuna sandwiches for PCR analysis.

Nature Papers Describe Gut Viruses, New Format for Storing Quantitative Genomic Data, More

In Nature this week: catalog of DNA viruses of the human gut microbiome, new dense depth data dump format to store quantitative genomic data, and more.