translation.en: When people think about making pan-viral detection reagents, usually it's the fast-evolving problem that's an issue, because how can we detect things if they're always changing?
translation.zh: 当人们想到制造泛用型病毒检测剂时 病毒的快速演变是个问题， 因为我们如何能够对一直变化着的病毒进行检测呢？