Like me, I don&;t go out all day, and I buy food online and deliver it to my door. If I really don&;t want to go downstairs to make nucleic acid, I&;ll be out of luck if I queue up to make a nucleic acid instead of going downstairs. Therefore, there is no other mentality of not doing nucleic acid for seven days, that is, there is no need to test if you don&;t go out.