Genetics reveals which Vikings went where during the influential Viking Age. Plus, how to get a COVID-19 vaccine to those who need it most and what happens when you read a paper every single day.

中文翻译：

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每日简报：基因映射维京人如何在欧洲传播

遗传学揭示了哪些维京人在有影响力的维京时代去了哪里。另外，如何为最需要的人接种 COVID-19 疫苗，以及每天阅读一篇论文时会发生什么。