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Tastes Like Chicken -- the Same Chicken We Had Last Week

The New York Times reports that scientists are concerned about a significant loss of genetic diversity in commercial chicken populations. A study led by a Purdue University researcher shows that "fifty percent or more of the diversity of ancestral breeds has been lost," which "could make chicken production more susceptible to disease outbreaks for which resistant genes have disappeared."

 

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.