Head Lice

Head lice are blood-sucking insects that parasitize the hair and scalp. Most often the scalp, eyebrows, and eyelashes are affected. You can encounter this type of lice in schools, dormitories, and medical hospitals. Infection is seasonal: massive in areas with a temperate climate occurs from June to September, less often - in October - November. Most cases of infection occur during the summer holidays. The peak of the lesion is observed in July–August with the duration of invasion from 2 to 5 weeks. Transmission of these insects occurs only through direct contact with a sick person. The source of infection is a sick person; the louse remains viable for up to 3-4 days after the death of the owner.

The first symptoms of lice (nits) are difficult to notice. It all starts with skin irritation in areas where parasites are concentrated. After a few days, the first itchy bumps and scabs appear on the skin. Under microscopy, round white eggs without a shell are observed, measuring from 1 to 2 mm with a thin core. Subsequently, the nits increase to the size of lice, then they can be seen with the naked eye (infective stage).

Certain types of lice are carriers of worms, rubella, tuberculosis, typhus, neurosyphilis, etc. Mechanical methods: for better results, baking sheets are used in a mixture with special insect repellents.