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Sema4 Expanded Carrier Screening

Sema4 has launched a larger Expanded Carrier Screen for family planning with personalized residual risk.

The test analyzes 502 genes associated with clinically relevant conditions, up from 283 genes, to cover more rare diseases. The test detects more high-risk pregnancies and identifies up to 30 times more carrier couples, Sema4 CEO Eric Schadt said in a statement. It also incorporates low-pass genome analysis to detect ancestry markers that to refine the accuracy of results.

The Scan

Possibly as Transmissible

Officials in the UK say the B.1.617.2 variant of SARS-CoV-2 may be as transmitted as easily as the B.1.1.7 variant that was identified in the UK, New Scientist reports.

Gene Therapy for SCID 'Encouraging'

The Associated Press reports that a gene therapy appears to be effective in treating severe combined immunodeficiency syndrome.

To Watch the Variants

Scientists told US lawmakers that SARS-CoV-2 variants need to be better monitored, the New York Times reports.

Nature Papers Present Nautilus Genome, Tool to Analyze Single-Cell Data, More

In Nature this week: nautilus genome gives peek into its evolution, computational tool to analyze single-cell ATAC-seq data, and more.