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Effectiveness of different masks in preventing disease transmission

Novel Coronavirus Response and Coordination Centre
2022-07-05 23:37
  • Effectiveness of different masks in preventing disease transmission

    Effectiveness of different masks in preventing disease transmission

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Effectiveness of different masks in preventing disease transmission

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4th round of Citywide NAT has ended; A cumulative total of 71 tubes of mixed samples tested positive; Concerned NAT stations and sampling time announced

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4th Round of Citywide NAT has ended; 637,349 samples collected; 575,424 negative results; A cumulative total of 71 tubes of mixed samples tested positive
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