When to Take a RAT Test (Rapid Antigen Test)

应在何时使用快速抗原检测(RAT):

如何进行快速抗原检测 – Instructional Rapid Antigen Test (Chinese Simplified)

https://www.youtube.com/watch?v=MHYMlmq_Sac

如何理解快速抗原检测结果 – Rapid antigen test – understanding your result (Chinese Simplified)

https://www.youtube.com/watch?v=idFKI7OTDjM

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