@least_recent @yangxifan @sherberrtttt It's probably not transmission from the phone, pillowcases, etc. that motivates it, it's just adding another way to detect if the owner is infected without relying solely on the nasal swab or saliva.
@least_recent @yangxifan @sherberrtttt 激发它的可能不是来自手机、枕套等的传播，它只是增加了另一种方法来检测主人是否被感染，而不仅仅依赖于鼻拭子或唾液。