5IBU:
reference: Influenza immunization elicits antibodies specific for an egg-adapted vaccine strain., Raymond DD, Stewart SM, Lee J, Ferdman J, Bajic G, Do KT, Ernandes MJ, Suphaphiphat P, Settembre EC, Dormitzer PR, Del Giudice G, Finco O, Kang TH, Ippolito GC, Georgiou G, Kepler TB, Haynes BF, Moody MA, Liao HX, Schmidt AG, Harrison SC, Nat Med. 2016 Dec;22(12):1465-1469. doi: 10.1038/nm.4223. Epub 2016 Nov 7. PMID: 27820604

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