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Shengjie Lai
Lai_CDC
How high is the risk of #COVID19 transmission among train passengers, by seat locations, co-travel time, seat re-used? See new @WorldPopProject paper on CID: https://academic.oup.com/cid/article/doi/10.1093/cid/ciaa1057/5877944#.XyKPb4Escpw
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