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In a paper published online in advance this week, investigators at Stanford University School of Medicine and elsewhere show that miR-489 is "highly expressed in quiescent satellite cells and is quickly downregulated during satellite-cell activation." Further, the team found that miR-489 "functions as a regulator of satellite-cell quiescence, as it post-transcriptionally suppresses the oncogene Dek, the protein product of which localizes to the more differentiated daughter cell during asymme

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

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.

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.