医学追踪观察
Medical follow-up observation
以上为机器翻译结果，长、整句建议使用 人工翻译 。
追踪调查显示，病人的所有接触者均未出现症状，其中大多数人已解除医学观察，表明未发生进一步传播。
All contacts have been traced and followed up. All are reported to be free of symptoms and most have been released from quarantine, suggesting that no further transmission has occurred.
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