NEW YORK (GenomeWeb) – Investment bank Piper Jaffray today upgraded the stock of Quidel to Overweight after the company said it had amended its previously announced acquisition of Alere's Triage B-type naturietic peptide assay business, an adjustment viewed as favorable to Quidel by several investment analysts.

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The US Food and Drug Administration has new guidelines that enable some gene and cell therapies to undergo expedited review, according to the New York Times.

Using gene drives to control invasive species might be too risky, an initial advocate of the approach says.

Researchers have grown tumors in 3D cell cultures to better understand cancer, the Economist reports.

In Science this week: intellectual property experts argue patent battles such as the one over CRISPR are wasteful, and more.