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How Low Can You Go?

The Scientist spoke with five researchers who are bring their studies down to the single-cell level. Joris Vermeesch at the Center for Human Genetics in Belgium is working on looking at the entire genomes of the eight cells that make up a blastomere to improve in vitro fertilization. UCSF's Jonathan Weissman is determining protein abundance in single cells — his team found that though housekeeping genes are stable, proteins vary. Other researchers they include are Ramunas Stepanauskas at the Bigelow Laboratory for Ocean Sciences, Xiaoliang Sunney Xie at Harvard, and Renato Zenobi at ETH.

The Scan

Missed Early Cases

A retrospective analysis of blood samples suggests early SARS-CoV-2 infections may have been missed in the US, the New York Times reports.

Limited Journal Editor Diversity

A survey finds low diversity among scientific and medical journal editors, according to The Scientist.

How Much of a Threat?

Science writes that need for a provision aimed at shoring up genomic data security within a new US bill is being questioned.

PNAS Papers on Historic Helicobacter Spread, Brain Development, C. difficile RNAs

In PNAS this week: Helicobacter genetic diversity gives insight into human migrations, gene expression patterns of brain development, and more.