Single vaccine could protect against all coughs, colds and flus, researchers say

A Stanford University team have tested their nasal spray vaccine in animals but still need to do human clinical trials.

​Single vaccine could protect against all coughs, colds and flus, researchers say A Stanford University team have tested their nasal spray vaccine in animals but still need to do human clinical trials. A Stanford University team have tested their nasal spray vaccine in animals but still need to do human clinical trials.