ahlam1399
01-19-2018, 11:01 AM
In the quest for improved and universal vaccines, scientists turned to a mutant virus to build an experimental flu vaccine. So far, the vaccine only has been studied in mice and ferrets.
أكثر... (http://www.cnn.com/2018/01/18/health/flu-vaccine-design-study/index.html)
أكثر... (http://www.cnn.com/2018/01/18/health/flu-vaccine-design-study/index.html)