Four charts show how pooling samples from many people can save time or resources. Four charts show how pooling samples from many people can save time or resources.

中文翻译：

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可以改变冠状病毒测试的数学策略

四个图表显示了汇集来自多人的样本如何节省时间或资源。四个图表显示了汇集来自多人的样本如何节省时间或资源。