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. Author manuscript; available in PMC: 2009 Oct 20.
Published in final edited form as: Curr Top Microbiol Immunol. 2009;332:33–54. doi: 10.1007/978-3-540-70868-1_3

Fig. 11.

Fig. 11

Demonstration of IFNα 2b functionality by the ability of IFNα 2b to protect HeLa cells against the cytopathic effect of encephalomyocarditis virus. Note that chloroplast derived IFNα 2b is as active as commercially produced Intron A