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Madeleine Johnson

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+1-212-651-5639
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Madeleine covers PCR, nucleic acid amplification, and sample prep technologies for GenomeWeb and 360Dx. 

Articles Authored by Madeleine Johnson

Feb 26, 2021

Reference Labs Take Diverse Approaches to Mitigating COVID-19 Sample Shipping Delays

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Labs like Biodesix, ARUP, Quest, and Labcorp engaged different strategies to prevent loss of patient samples during recent extreme weather.

Feb 19, 2021

Quidel Reports Delay in OTC COVID-19 Antigen Test Claims, Pours Cold Water on M&A Rumors

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The firm's over-the-counter claim submission is delayed because it has been unable to find the required number of positive cases among asymptomatic people.

Feb 17, 2021

RADx Expects COVID-19 Portfolio to Accelerate an Era of At-Home Infectious Disease Testing

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With $1.2 billion in funding earmarked for more than 40 projects, the portfolio represents a path out of the SARS-CoV-2 pandemic for the US.

Feb 12, 2021

Bio-Rad Seeks Transformational M&A as it Restructures and Invests in MDx Portfolio

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Executives mapped out the next few years for the firm, estimating a deceleration in COVID-19 testing beginning the second half of 2021.

Feb 04, 2021

Becton Dickinson Charts Ramp-Up, Transition of COVID-19 Diagnostics

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BD is reinvesting some of its $668 million Veritor Dx windfall into expanding the menu for a newly tripled installed base.

Feb 03, 2021

UK Team Creates Five-Minute SARS-CoV-2 MDx With Rarely Used Isothermal Amplification Method

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The University of Birmingham-developed method combines a method called EXPAR with a rapid upfront step to obviate reverse transcription.

Jan 27, 2021

Germany's GNA Biosolutions Commercializing Rapid MDx Instrument, SARS-CoV-2 Test

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The firm is also developing an instrument-free molecular diagnostic assay technology for the home testing market.

Jan 19, 2021

Hemex Health Brings Portable Malaria and Sickle Cell Disease Testing to India, Africa

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The firm has collaborated with Novartis to help pilot the new sickle cell disease test and a treatment in Ghana.

Jan 13, 2021

At JP Morgan Conference, Quidel CEO Discusses Plan to Enter OTC Infectious Disease Test Market

The firm plans to begin its OTC efforts with a COVID antigen test but also sees potential in migrating other infectious disease tests.

Jan 08, 2021

SARS-CoV-2 Mutations Present Unexpected Opportunities, Challenges for MDx Developers

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Some tests that detect multiple SARS-CoV-2 genes are serendipitously signaling new viral variants while still effectively detecting infections.

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