Thanks, didn't know that.
Sparring Over Head Lice
Premature release of study results embroils NPA, Harvard School of Public Health and Warner-Lambert in a three-way dispute.
The battleground over head lice has spread beyond the heads of American children. While parents await a cure-all to counteract harmless pests, a controversy over whether resistance is developing to a widely used chemical - and how such information should be disseminated - is coming to a head.
The dispute began when the National Pediculosis Association (NPA), a not-for-profit health education agency, released information suggesting that a study it had funded concluded that head lice in two test markets had developed resistance to permethrin, the active ingredient in Nix cream rinse, marketed by Warner-Lambert, Morris Plains, NJ.
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