head lice are on people. they live on the scalp of humans mostly children. i don't know who in history started it (maybe one of adam and eves two boys? ) but head lice have been annoying people for hundreds of thousands of years. head lice do not live very long off of their human hosts. most infestations occur from close human contact again common in children. sharing of hats combs brushes etc is a good way to get them. trying to track down how a particular person got head lice would take a team of fbi agents so just get it treated effectively. that is what is most important.
what causes head lice. i understand how it spreads. i want to know how is it contracted in the beginning?