The knowledge of structures of viruses at atomic resolution is beneficial and powerful in discovery and design of vaccine and anti-viral drug. Electron cryo-Microscopy (cryo-EM) is one of the three major methods to determine 3D structures of biological samples. The rapid development of both instrument and data processing techniques has established an indispensable role for cryo-EM in studying structures and dynamics of macromolecules and viruses.	Viral Particle structure service	https://www.creative-biostructure.com/Cryo-EM-for-Viral-Particle-Identification-and-Characterization-593.htm