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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Expert Rev Vaccines. 2012 Aug;11(8):995–1007. doi: 10.1586/erv.12.70

Figure 3. A model of influenza viral surface proteins and virus-like particles expressing influenza surface proteins separately.

Figure 3

(A) The viral surface is represented with large trimeric globular HA, tetrameric NA and small tetrameric M2. (B) Influenza VLP surface expressing influenza HA, NA or M2 protein.

HA: Hemagglutinin; NA: Neuraminidase; VLP: Virus-like particle.