The FDA has approved Flucelvax, the first seasonal vaccine licenced in the USA made with the use of cultured animal cells, instead of fertilized chicken eggs. The FDA (Food and Drug Administration) has approved Flucelvax to protect patients aged at least 18 years from seasonal flu. Flucelvax's manufacturing process is similar to that used in egg-based manufacturing. However, when using cultured animal cells, the virus strains are grown in those cells of mammalian origin, rather than in eggs...
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