“Structural Studies of Chikungunya Virus-like Particles 2 Complexed with Human Antibodies: Neutralization and 3 Cell-to-Cell Transmission”  
Jason Porta, Vidya Mangala Prasad, Cheng-I Wang, Wataru Akahata, Lisa F.P. Ng, Michael G. Rossmann
 
http://jvi.asm.org/content/early/2015/10/30/JVI.02364-15.full.pdf+html