http://synbioproject.tech/cpi/applications/attenuated-virus-cultures-for-vaccine-production/
The production of vaccines to improve immunity to disease can be increased by using a bank of synthetic seed viruses, rather than waiting to develop the vaccines based on natural reference viruses.
Currently Novartis and other vaccines companies rely on the WHO to identify and distribute live reference viruses to create seasonal or pandemic vaccines. Under this collaboration, Novartis and SGVI will work to develop a "bank" of synthetically constructed seed viruses ready to go into production as soon as WHO identifies the flu strains. The technology could reduce the vaccine production time by up to two months, which is particularly critical in the event of a pandemic. Source