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Adult Stem Cells Take a Step Back

This wire story reports that a 2002 study that suggested adult stem cells from bone marrow could differentiate into a variety of tissues may have contained some mistakes. A panel convened by the University of Minnesota said the way Catherine Verfaillie’s lab at identified these tissues was “significantly flawed” and the interpretation of that data was then “potentially incorrect."

The Scan

Tens of Millions Saved

The Associated Press writes that vaccines against COVID-19 saved an estimated 20 million lives in their first year.

Supersized Bacterium

NPR reports that researchers have found and characterized a bacterium that is visible to the naked eye.

Also Subvariants

Moderna says its bivalent SARS-CoV-2 vaccine leads to a strong immune response against Omicron subvariants, the Wall Street Journal reports.

Science Papers Present Gene-Edited Mouse Models of Liver Cancer, Hürthle Cell Carcinoma Analysis

In Science this week: a collection of mouse models of primary liver cancer, and more.