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Sema4: Nat Turner, Emily Leproust, Eli Casdin

Sema4 has appointed three new members to its board of directors, who will take up their posts after the firm has gone public through a planned merger with special purpose acquisition company CM Life Sciences.

The new members are Nat Turner, cofounder and CEO of Flatiron Health; Emily Leproust, cofounder and CEO of Twist Bioscience; and Eli Casdin, founder and chief investment officer of Casdin Capital.

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.