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On Thursday, researchers at UC Berkeley announced that they’ve discovered ten new CRISPR enzymes that can potentially be used to diagnose diseases like Zika or dengue fever quickly and cheaply. The technology isn’t ready for prime-time yet, but it could eventually allow clinics to test a sample of someone’s blood, saliva, or urine for many diseases at once.

Typically, when people talk about CRISPR, they are actually talking about CRISPR-Cas9. That’s the CRISPR programming paired with one specific enzyme (Cas9) that’s used to DNA at precise locations. But there are a host of other enzymes out there that can be used as part of the CRISPR system, and all of them have different talents. The new enzymes that Berkeley researchers have discovered are all variants of the CRISPR protein Cas13a, and their speciality seems to be detecting specific sequences of RNA, including those from a virus.

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