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Nick Oswald at Bitesize Bio considers a study of various approaches to desalting DNA for electroporation and concludes that "for the high concentration samples the microcolumns were the clear winner, although dialysis and gel filtration gave just a 2-fold lower efficiency." He adds that microcolumns were also best for low concentration samples -- and in this case were "at least 100x more efficient than any of the other methods." On a side note, he says, "For some reason, ethanol p

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CNN reports that a US Food and Drug Administration document says Johnson & Johnson's SARS-CoV-2 vaccine meets the requirements to receive an Emergency Use Authorization.

According to BBC News, the global vaccine-sharing initiative has sent its first shipment, which arrived in Ghana this week.

Researchers in France are developing a new, fast test for SARS-CoV-2 that initial testing indicates may be highly accurate, the Guardian says.

In Cell this week: analysis of fitness patterns among SARS-CoV-2 isolates, single-cell transcriptome analysis of immune features in COVID-19, and more.