Pediculosis

Excerpt

Each year, pediculosis (lice infestation) affects millions of people worldwide across all regions and socioeconomic groups. Lice are obligate parasitic insects with no free-living stage in their life cycle. Transmission occurs via direct skin-to-skin contact or through fomites, and symptoms typically do not appear for 3 to 4 weeks. The three human-parasitic species are Pediculus humanus capitis (head lice), Pediculus humanus corporis (body lice), and Pthirus pubis (pubic or crab lice). Head lice are the most common species and affect individuals across all socioeconomic backgrounds. Body lice are more frequently found in homeless or displaced populations and should be suspected in cases of scratching, poor hygiene, or during colder months. (See Image. Head Lice)