If H1NI mutates, would the current vaccine become ineffective?
It mutated just a few days ago. It has became a little more dangerous, since it can dig deeper inside your lungs. Actually, it could be said that no two viruses inside an infected person are the same, that bästard mutates really often. However, these mutations are pretty small and do not affect its core genetic characteristics in a noticeable way. However, if the mutation produces another antigenic shift, combined with another influenza virus, it could be dangerous. It all basically depends on the magnitude of mutation, but as of now, vaccines are still effective, and they would likely provide some protection even if the virus would mutate.
