Detailed text transcripts for TV channel - CNN - 20170416:07:09:00
Ideally even to prevent them with vaccines. >> they have been with us for millions and millions of years in the world. we can ask some questions and find sought some useful information. >> viruss are bad, but in terms of research they provide the critical tools for our cells. they have been with us through millions and millions of years of evolution. if we can ask the right questions, maybe we can find out some useful information. we have surveillance projects, we have viruses from humans, from animals, from twine, that birds, finding out what are the mechanisms for spread. >> when you are tal...