Large-scale production and concentration of infectious Epstein-Barr virus.

Infectious Epstein-Barr virus (EBV) was produced from suspension cultures of P3HR-1 cells. A protocol for the scaled-up production and concentration of the virus was developed. Virus from the culture fluid was concentrated by continuous-flow pelletization or continuous flow with banding in sucrose.

Production of infectious Epstein-Barr virus by using an intermittent culture collection system.

Procedures were developed to produce infectious Epstein-Barr virus in large glass fermentors with limited mechanical agitation by using an intermittent culture collection system. The system appears quite suitable for use in fermentation vessels of 50 liters or larger.