All of us used to think that the greater age, the bigger problems with immune system we have. A major percent of influence-related deaths occurs between people above 65. Everything of this is true then we speak about some simple infection like bird flu.
However, situation changes when a person has a serious virus, like N1H1 flu. Scientists revealed that people above 65 suffered from this virus with lower frequency than other groups of people. It was suggested that such phenomenon take place because of some sort build-in immunity associated with specific capable to interfere with flu proteins.
Thus, next time you will have a possibility to get some terrible virus, let’s ask your grandparents to some saliva or blood in order to make a vaccine.