Figure 3From: Immunization of N terminus of enterovirus 71 VP4 elicits cross-protective antibody responsesElectron microphotographs of HBc-N149 and HBc-N149-VP4N20 particles. (A) Particles assembled from HBc-N149. (B) Chimeric particles assembled from HBc-N149-VP4N20. Size bar: 50 nm.Back to article page