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Articles sur COVID-19 pandemic

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A virus’s genes hold a record of where it’s traveled, and when. imaginima/E+ via Getty Images

Charting changes in a pathogen’s genome yields clues about its past and hints about its future

After a nose swab tests positive for a virus or bacteria, scientists can use the sample’s genetic sequence to figure out where and when the pathogen emerged and how fast it’s changing.
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Early childhood educators feel burnt out and undervalued. Here’s what we can do to help

The pandemic highlighted Australia’s reliance on early childhood educators, while adding to their existing stresses. A study of how educators fared identifies three key factors in their well-being.

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