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A cheap nanoscale detector for bacteria could be available in a few years, says Technology Review. The University of Rochester Medical Center's Benjamin Miller developed a sensor that combines a hairpin complementary DNA, a fluorescent tag, and a gold film. "The DNA stays folded over until a target genetic sequence links to it. Its unfolding results in the fluorescent molecule moving away from the gold film and glowing, which can be seen under a fluorescent microscope," the article notes.

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Bloomberg reports AstraZeneca may conduct another study of its candidate SARS-CoV-2 vaccine after dosing error.

Moderna is applying for an Emergency Use Authorization for its coronavirus vaccine, according to the New York Times.

The National Health Service is to conduct a trial of Grail's blood-based screening test for cancer.

In PLOS this week: somatic mutation patterns of glioblastomas among Lebanese patients, phenome-wide study using UK Biobank data, and more.