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Synthetic biology's in the news. Scientific American delves into using DNA molecules as logic gates that can sense environmental stimuli like cellular markers and could one day be used to detect and kill disease cells. The authors show how DNA gates can be built to play perfect games of tic-tac-toe.

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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.