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A new imaging technology called photo-acoustic tomography is being developed by researchers at Washington University in St. Louis, Reuters reports in a video. Using lasers and sound, the researchers are able to create much higher-quality images of body parts than they currently can. "It's actually a way of using sound to detect optical features," researcher Lihong Wong tells Reuters. "Instead of looking at optical structures, we're listening to optical structures. Light is beamed at the body and absorbed by the tissues. It then scatters, and causes a rapid increase in temperature, which then produces sound waves, Reuters reports. Researchers then detect these sound waves, and create an optical image of the tissues and organs. Wong adds that this technology will give doctors a detailed look at what's happening in the body in real time. The hope, Reuters adds, is that they can use this method to detect early signs of cancer before it develops into a tumor, especially in tissues and organs that aren't easily imaged by conventional means.

The Scan

Push Toward Approval

The Wall Street Journal reports the US Food and Drug Administration is under pressure to grant full approval to SARS-CoV-2 vaccines.

Deer Exposure

About 40 percent of deer in a handful of US states carry antibodies to SARS-CoV-2, according to Nature News.

Millions But Not Enough

NPR reports the US is set to send 110 million SARS-CoV-2 vaccine doses abroad, but that billions are needed.

PNAS Papers on CRISPR-Edited Cancer Models, Multiple Sclerosis Neuroinflammation, Parasitic Wasps

In PNAS this week: gene-editing approach for developing cancer models, role of extracellular proteins in multiple sclerosis, and more.