Madeleine Johnson

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+1-212-651-5639

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[email protected]

Madeleine covers PCR, nucleic acid amplification, and sample prep technologies for GenomeWeb and 360Dx.

Articles Authored by Madeleine Johnson

Nov 20, 2020

Illumina, IDbyDNA Flesh Out Sequencing-Based Respiratory Tests

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The two firms aim to bring down costs and turnaround time with two newly-launched sequencing tests for respiratory pathogens, RVOP 2 and Explify RPIP.

Nov 18, 2020

Lab Directors Discuss Unprecedented Challenges and Scrambling for Solutions During COVID-19 Pandemic

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In a conversation at the Association for Molecular Pathology meeting, the directors touched on topics such as test allocation and staffing and reagent shortages.

Nov 17, 2020

SpeeDx Expanding MDx Portfolio With Respiratory Virus Host-Response Test

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The Sydney, Australia-based firm has licensed a single biomarker which it plans to develop into a test for triaging COVID-19 patients.

Nov 06, 2020

Multiplex PCR Panels for Joint Infections on the Horizon

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BioFire has submitted a 39-target test to the US Food and Drug Administration. OpGen also has a test in development.

Nov 03, 2020

Natera Aims to Improve Prospera Kidney Test After Findings Reveal Cell-Free DNA Changes in Infection

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The firm recently described circumstances in which the fraction of host or donor DNA could be altered, and plans new approaches to data interpretation.

Oct 30, 2020

Quidel Expects SARS-CoV-2 Testing Demand to Continue 'Through 2022, and Beyond'

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Quidel expects to launch at least four new products over the next year and commented on its overall COVID-19 strategy, as well as R&D plans, M&A possibilities, and other updates.

Oct 09, 2020

India Banks on Decentralized Molecular COVID-19 Testing

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With nearly 7 million COVID-19 cases, the country is expanding near-patient strategies historically deployed for tuberculosis testing for SARS-CoV-2 testing.

Oct 07, 2020

FDA Will No Longer Review EUA Submissions for SARS-CoV-2 Lab-Developed Tests

The agency provided the update on Wednesday in its weekly virtual town hall and on its FAQ page.

Oct 02, 2020

UK Team Enhances Real-Time PCR Multiplexing Using Data Analytics

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The new method incorporates analysis of the amplification and melt curves and was used to create a single-channel nonaplex test using intercalating dye.

Sep 16, 2020

FDA Publishes First Batch of SARS-CoV-2 MDx Limit of Detection Comparison Results

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Reported as "nucleic acid amplification test-detectable" units per milliliter, the limits of detection of more than 50 commercial tests differed by 10,000-fold.

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Madeleine Johnson

Illumina, IDbyDNA Flesh Out Sequencing-Based Respiratory Tests

Lab Directors Discuss Unprecedented Challenges and Scrambling for Solutions During COVID-19 Pandemic

SpeeDx Expanding MDx Portfolio With Respiratory Virus Host-Response Test

Multiplex PCR Panels for Joint Infections on the Horizon

Natera Aims to Improve Prospera Kidney Test After Findings Reveal Cell-Free DNA Changes in Infection

Quidel Expects SARS-CoV-2 Testing Demand to Continue 'Through 2022, and Beyond'

India Banks on Decentralized Molecular COVID-19 Testing

FDA Will No Longer Review EUA Submissions for SARS-CoV-2 Lab-Developed Tests

UK Team Enhances Real-Time PCR Multiplexing Using Data Analytics

FDA Publishes First Batch of SARS-CoV-2 MDx Limit of Detection Comparison Results

Breaking News

Somalogic Closes $121M Series A Funding

FDA Issues EUAs for Gravity Diagnostics Coronavirus Test, Sample Self-Collection Kit from RapidRona

Kantaro Biosciences Gets FDA Emergency Use Authorization for Coronavirus Antibody Test

In Brief This Week: Quest Diagnostics, Fluidigm, BD, and More

Tempus Gets CE Mark for xT Tumor Sequencing Assay

BTIG Downgrades Fulgent Genetics from Buy to Neutral

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