For many years the paradigm of protection against influenza has been an immunization drive in the fall. Each year a vaccine is assembled against influenza strains that first emerged in Asia then spread to the Southern hemisphere the previous winter, following natural migration patterns.
The different influenza variants are identified and a corresponding seasonal vaccine is produced and distributed in the North. This strategy has been successful for many years. Greffex’s Universal Vector Platform has exploited the flexibility of our platform to produce several vaccine constructs, such as a Swine Influenza GREFLU/CAL™.