Infectious Disease Epidemiology Program

Head Lice

The head louse, or Pediculus humanus capitis, is a parasitic insect that can be found on the head, eyebrows, and eyelashes of people.  Head lice feed on human blood several times a day and live close to the human scalp.  Head lice are not known to spread disease.

Head lice fact Sheet (Word* | also in Adobe PDF*)