Purification and Characterization of Enterovirus 71 Viral Particles Produced from Vero Cells Grown in a Serum-Free Microcarrier Bioreactor System
Figure 2
Photographs of EV71 viral particles as analyzed by transmission electron microscopy.
(A) Fraction 10 was empty and had a defective particle (E-particle) structure. (B) Fraction 16 was full and had a solid particle (F-particle) structure. The bar represents 50 nm.