Table 2: Numbers of viral and infectious particles in purified preparations of adenoviruses.

Viruses Viral Particle (VP), vp/ml Infectious Particles (IP), TCID50/ml VP/IP
Ad5-empty 1.2 X 1012 4.5 X 1010 27
Ad5HVR7epB 1.8 X 1012 2.5 X 1010 72