Enhanced virus replication in mammalian cells exposed to commercial emulsifiers

Mammalian cell cultures were used to show that a variety of commercial emulsifiers are capable of enhancing the sensitivity of these cells to infection with several viruses. Some emulsifiers were not active as enhancers, and those viruses that responded to the enhancing emulsifiers were single-stranded ribonucldic acid viruses. The double-stranded viruses that were tested were nonresponders.