TABLE 1.

Infectivity of extracellular and TNE-released HSV-1

Infection time (h)	Virus	Titer (PFU/ml)		No. of particles/ml		No. of particles/PFU
		Expt 1	Expt 2	Expt 1	Expt 2	Expt 1	Expt 2
20	Extracellulara	1 × 108	5 × 108	6.1 × 109	3.4 × 109	61	6.8
20	TNE extract	8 × 108	NDb	8.4 × 1010	ND	105	ND
72	Extracellular	8 × 107	1 × 108	13.4 × 1011	9.7 × 1010	1,680	970

^aVirus harvested from the culture supernatant.

^bND, not determined.