Researchers have created a version of CRISPR-Cas that can be used to diagnose infections, such as Zika and dengue, with a high level of sensitivity. The advancement could help facilitate rapid detection and diagnosis of many other pathogens, too. While some methods exist for detecting genetic sequences, they have trade-offs among sensitivity, specificity, simplicity, cost, and speed. In the search for a more effective method, Feng Zhang, Jonathan S. Gootenberg and colleagues turned to a CRISPR-Cas system that targets RNA.
Binding the target RNA activates this particular Cas enzyme to promiscuously cleave nearby RNA...
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