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60% of US coronavirus cases may have gone unreported, study shows

chinadaily.com.cn | Updated: 2021-07-28 08:07
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Researchers at the University of Washington estimate that approximately 60 percent of US coronavirus cases may have gone unreported due to some major drawbacks, including biases in test data and delayed reporting, according to a study published on Monday in the Proceedings of the National Academy of Sciences.

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