“…Despite evidence that infestation is not correlated with socioeconomic status, pediculosis is a socially undesirable parasitic condition accompanied by social stigma, sleeplessness, pruritus, and lost days in school (Mumcuoglu et al 1991, Meinking 1999. Head lice are considered a severe nuisance, but few researchers have studied head louse biology since the Þrst part of the last century (Bacot 1917, Nuttall 1917, Buxton 1936. Research interest in head lice has reemerged because reports of resistance to topical pediculicides have been documented around the world (Chosidow et al 1994, Burgess et al 1995, Mumcuoglu et al 1995, Rupes et al 1995, Picollo et al 1998, Pollack et al 1999, Lee et al 2000.…”