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Two More Makes 32

Researchers at the University of Vermont have discovered two new red blood cell proteins that indicate the existence of two new blood types, reports Popular Science's Dan Nosowitz. The study, published recently in Nature Genetics, describes the blood types — called Junior and Langereis — which are prevalent in East Asia, particularly Japan, Nosowitz says. This brings the number of known blood types to 32, though most of them are rare, the researchers say.

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.