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They Cut You Off and Blame Their Genes

A small study by neurologists at UC-Irvine suggests that people with a gene variant that limits the availability of brain-derived neurotrophic factor do about 20 percent worse on driving tests than people with the common variant. Previously, it had been shown that people with the variant have a smaller portion of their brain stimulated when doing a task and it is linked to slower recovery from a stroke. "We wanted to study motor behavior, something more complex than finger-tapping," says lead author Stephanie McHughen, to Scientific Blogging. "Driving seemed like a good choice because it has a learning curve and it's something most people know how to do." The study was published in Cerebral Cortex.

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.