Generated Time: Tue, 07 Jul 20 17:53:14 +0800
 

接触者追踪对抗击新冠肺炎至关重要


It's possible that those who've had the disease and then recovered from it can be protected from getting infected again by the antibodies they develop. But health officials say there's no proof that will happen. They don't know how long it will last if it does and there are concerns about the dependability of the antibody tests themselves. But they're a step toward knowing who's had COVID-19 and possibly preventing the future spread of it and contact tracing can help with that too.

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