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NSW Public Health Bulletin archive

FactSheet: Headlice Volume 11 Issue 1-2

New South Wales Public Health Bulletin 11(2) 15 - 15 Published: 2000

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Head lice are tiny insects that live in hair, where they breed and feed on blood from the scalp. They are about the size of a sesame seed, have six legs, and range from tan to greyish-white in colour. They live up to 30 days and cannot survive for more than two days away from the human scalp.