و في الحالتين ، استطعنا استعمال التحليل الجيني لتفحص فايروس شلل الأطفال و استطعنا ان نجزم بأن هذه الفايروسات ليست من الدول ذاتها !
And in both cases, we were able to use genetic sequencing to look at the polio viruses, and we could tell these viruses were not from these countries.