ahlam1399
06-16-2017, 02:00 AM
Three genetic changes could be e**ugh to make a bird flu strain that's already killing some people in China highly contagious. Are experiments with a deliberately mutated version too risky?
أكثر... (http://www.npr.org/sections/health-shots/2017/06/15/532925945/just-small-genetic-tweaks-to-chinese-bird-flu-virus-could-fuel-a-human-pandemic?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/health-shots/2017/06/15/532925945/just-small-genetic-tweaks-to-chinese-bird-flu-virus-could-fuel-a-human-pandemic?utm_medium=RSS&utm_campaign=news)