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Madeleine Johnson

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

Articles Authored by Madeleine Johnson

Jul 10, 2020

SARS-CoV-2 Pandemic May Promote Progress in Paper MDx

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A handful of researchers and companies are hoping to finally bring the paper-based molecular diagnostic space to fruition.

Jun 17, 2020

FDA Provides Guidance on Pooled Samples, Asymptomatic Testing for SARS-CoV-2

The move is intended to increase testing for COVID-19 and may help conserve resources, which were a major problem during the height of the pandemic.

May 21, 2020

Head-to-Head Comparisons of Commercial SARS-CoV-2 MDx Tests Point to Few Differences in Accuracy

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More than a dozen studies have been published to date directly comparing molecular diagnostic COVID-19 tests, with some detecting differences, mostly in sensitivity.

May 19, 2020

BioMérieux's BioFire Pneumonia Panel Could Improve Care, Find Secondary Infection in COVID-19 Cases

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A handful of recently published trials suggest that use of the pneumonia panel could lead to more targeted therapy delivered more quickly than standard methods.

May 15, 2020

Becton Dickinson to Expand Into Point-of-Care MDx With NAT Diagnostics Acquisition

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The acquisition will round out BD's molecular portfolio and be complementary to the firm's Veritor immunoassay system, according to executives. 

May 14, 2020

FDA Requiring Real Patient Samples for Emergency Use Authorization of COVID-19 MDx Tests

With the US now awash in positive samples, assay developers seeking authorization will no longer be allowed to use contrived samples.

Apr 24, 2020

Startup Dropworks Finalizing Digital PCR System for 2021 Launch

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The firm's Continuum system is fully automated and performs the entire digital PCR workflow in a single instrument.

Apr 23, 2020

Curative, KorvaLabs Partner to Create High-Throughput COVID-19 Oral Fluid Testing Lab

The partners received Emergency Use Authorization last week for a test that uses oral fluids, and the lab has capacity to test up to 10,000 samples per day.

Apr 22, 2020

FDA to Harmonize COVID-19 Data with New Terminology Codes

The agency plans to work with a number of partners to develop codes that will describe tests and results to standardize data collection.

Apr 22, 2020

Dutch Firm Molecular Biology Systems Validating Rapid Thermal Cycler for COVID-19 Testing

MBS has developed a compact endpoint PCR system which can test more than 22,000 patient samples per day by performing eight-minute thermal cycling.

The Scan

Robots for the Lab

Researchers have developed a robotic lab assistant, the Verge reports.

Ruling Awaited

CBC News reports Canada's Supreme Court is to rule on the constitutionality of the country's genetic non-discrimination law today.

To Find Where It Came From

The Associated Press reports the World Health Organization is sending experts to China to investigate the animal source of SARS-CoV-2.

Science Presents Atlas of Aberrant Cells in Lung Condition, More

In Science this week: atlas of affected cell populations in idiopathic pulmonary fibrosis, and more.

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