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The company recently presented results from its Aurora assay for multi-cancer screening and plans to launch a $100 test for the US and Chinese markets.

In PNAS this week: study of central nervous system inflammation roots, circulating immune cells in cancer reflect patient response to treatment, and more.

Investigators are building upon an initial case study that allowed them to assess how well ctDNA captured a cancer's full genomic heterogeneity compared to tissue biopsies.

In Science this week: mass spectrometric analysis of the SARS-CoV-2 spike protein, and more.

Alcohol use in combination with ALDH2 mutations or germline changes in the CDH1 gene corresponded to a subset of diffuse-type gastric cancer cases in East Asian individuals.

The companies are looking to model gene expression signatures to predict treatments for gastric cancer and improve patient stratification methodologies. 

Palmetto has expanded the local coverage determination for the Guardant360 liquid biopsy assay to be used with the majority of advanced solid tumors.

The company's +RNAinsight test, a combined DNA and RNA genetic test for hereditary cancer syndromes, was launched in October.

The researchers estimated that addition of RNA-based testing could benefit about 1 in 43 individuals undergoing hereditary cancer predisposition genetic testing.

In PNAS this week: recurrent inactivation of DEPDC5 in gastrointestinal stromal tumors, taxonomic reliability of GenBank sequences, and more.

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The Washington Post reports that the CDC's SARS-CoV-2 test issues reflect earlier ones it had with Zika virus testing.

NPR writes that even with thousands of new COVID-19 papers, each should be evaluated based on its own quality.

Researchers traced a gene cluster linked to COVID-19 severity to Neanderthals, the New York Times reports.

In PNAS this week: soil bacteria-derived small molecules affect centrosomal protein, microfluidics approach for capturing circulating tumor cells, and more.