Early Detection of Infection is Critical to Reducing the Asymptomatic and Pre-Symptomatic Spread of COVID-19
Saliva-based PCR testing using Spectrum’s family of saliva collection devices is able to accurately detect the presence of COVID-19 days before symptoms appear. A clear benefit of the extraction and amplification process using our patented preservation chemistry. This highly sensitive formulation detects an infection from saliva samples measuring as low as 200 copies/ml compared to rapid antigen lateral flow tests requiring a minimum of 10,000-20,000 copies/ml.
Highly sensitive RNA testing (limit of detection of ∼10 3 copies/mL) detects the SARS-CoV-2 virus in saliva 1.5 to 4.5 days before the viral load in the paired nasal-swab sample.(1) Unfortunately, using neat or raw saliva virtually eliminates this early detection window from skipping the extraction and amplification process having fewer detectable copies.
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