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The Scan

Blend of Omicron With Delta

The Associated Press reports that currently circulating Omicron variants have some features previously seen in the Delta variant.

Limited Contrast

The New York Times reports that there is a shortage of a contrast agent used for some medical scans.

Pig Improvement

Farmers in China are using genetics to improve their hog herds, according to Reuters.

Science Papers Present Way to Molecularly Classify Prostate Cancer, Saliva-Based SARS-CoV-2 Test, More

In Science this week: approach to molecularly classify prostate tumors, saliva-based test for SARS-CoV-2, and more.