Assertion: flu vaccine | /r/CreatedBy | growing virus
Facets:
value: in cell cultures
type: LOCATION
value: in influenza vaccines
type: LOCATION
Source sentences:
text: In 2012, the U.S. Food and Drug Administration (FDA) approved influenza vaccines made by growing virus in cell cultures and influenza vaccines made from recombinant proteins have been approved, with plant-based influenza vaccines being tested[when?] in clinical trials.