Vaccines Kept for Longer
The World Health Organization reports that there is no need to throw away stockpiles of vaccines that have been used in the past. For instance, upon the epidemic of the avian flu a few years back health officials made an excess of vaccine doses, but new reports who that the vaccine will never "expire".
Testing is still being done to see if the tamiflu that was stored for the avian flu will be useful in fighting the swine flu this upcoming fall. But for now, research is still being done to come up with a swine flu vaccine.
This information allows medical scientists to create an over-abundance of the vaccine. This way if there was to be another outbreak with the same strain of the virus, they will be more than prepared for vaccinate millions.
This technology also allows scientists to continuously create vaccines instead of only experimenting when a new strain is developed.