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Related Concept Videos

Real Time RT-PCR02:57

Real Time RT-PCR

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Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction.
The real-time quantification of the number of amplified products is...
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Updated: Nov 14, 2025

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling
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Clinical and Economic Effects of Widespread Rapid Testing to Decrease SARS-CoV-2 Transmission.

A David Paltiel1, Amy Zheng2, Paul E Sax3

  • 1Public Health Modeling Unit, Yale School of Public Health, New Haven, Connecticut (A.D.P.).

Annals of Internal Medicine
|March 8, 2021
PubMed
Summary
This summary is machine-generated.

Frequent, rapid home testing for SARS-CoV-2 (the virus that causes COVID-19) can significantly reduce infections and deaths. This strategy offers a justifiable cost for pandemic control, warranting national consideration.

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Area of Science:

  • Epidemiology
  • Public Health
  • Health Economics

Background:

  • The impact of frequent, rapid testing on community transmission of SARS-CoV-2 remains unclear.
  • Understanding the performance standards and outcomes of nationwide, home-based antigen testing is crucial.

Purpose of the Study:

  • To define performance standards for home-based antigen testing.
  • To predict the clinical, epidemiologic, and economic outcomes of widespread SARS-CoV-2 antigen testing.

Main Methods:

  • A compartmental epidemic model was developed to simulate viral transmission, disease progression, and resource utilization.
  • The model incorporated parameter values from CDC guidance and published literature for the U.S. population over a 60-day horizon.
  • Societal perspective was adopted, including costs of testing, inpatient care, and lost workdays.

Main Results:

  • Without testing, the model projected 11.6 million infections and 119,000 deaths.
  • Weekly home testing could avert 2.8 million infections and 15,700 deaths, with an incremental cost-effectiveness ratio of $7890 per infection averted.
  • Sensitivity analyses confirmed significant reductions in infections, mortality, and hospitalizations across various scenarios.

Conclusions:

  • High-frequency, home-based SARS-CoV-2 antigen testing, even with imperfect tests, can aid pandemic control.
  • This strategy is justifiable in terms of cost and warrants inclusion in national containment strategies.
  • Further consideration of at-home testing is recommended despite uncertainties in test performance.