Ключевые слова: adult, animal, biology, blood, brown, carrier, claw, clinical, detail, dirty, disease, hair, head, head louse, health, health care, hygiene, infection, infest, insect, itch, lice, louse, magnification, magnified, medicals, medicative, medicine, microscope, microscopic, nature, parasite, pediculus humanus, please, sanitary, scratch, slide, sucker, tiny, transmit, unclean, zoology,