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Application Comparison

The chart describes virus screening techniques commonly available today

art 1 Comparisn: Viral Diagnostic Technologies


Performance Criteria  vs. Diagnostic Method:

PCR

DLS #

RapidDx

Response Time

Hours to days

Minutes

Minutes

Generic to All Viruses

No

Yes

Yes

Virus Species Identification

Yes

No

Yes

Virus Strain Identification

Yes

No

No

True Negative – No viruses present

No

?

Yes

Viral Load Measurement (quantification)

Yes

Limited

Yes

Viral Strain Identification

Yes

No

No

Deployment time* –Pandemic Response

≥Days

Minutes

Minutes

Cost Per Analyte (Virus Species)

~$100-400

~$10

 $0.10-$1

    Expensive, short-shelf life reagents needed?                                      

Yes

No

NO

Rapid pre-screen to complement PCR?

-

Yes

Yes

Nano-particle size-resolution (% full-scale)

-

10-30%

1-2%

Limits of Detection  (virus-particle per cc)

<100

108

105

# Nanosight DLS Dynamic Light Scattering

* New PCR test-kits must often be developed for new virulent strains; this may take days or weeks

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