TABLE 1.

Toxicity of surfactants to wild-type ENV735

Surfactant	% Survival after 24 h with:
	0.1% (vol/vol) Surfactant	0.01% (vol/vol) Surfactant
Control (no surfactant)	100	100
Tergitol 15-S-12	<0.00002	<0.00002
Steol CS-330	<0.00002	14
Igepal CO-720	<0.00002	<0.00002
Sodium dodecyl sulfate	NDa	<0.00002
Tween 20	2	102
Tween 80	<0.00002	<0.00002
JBR-425	<0.00002	<0.00002
Brij 35	<0.00002	<0.00002

^aND, not determined.