Infestations of Public Health Importance
Head Lice
Lice are parasites of warm-blooded animals, including man. Head lice are not known to transmit any human pathogens. The chief human health concerns associated with head lice are skin irritation at the feeding site, secondary bacterial infections from scratching, and the psychological "trauma" of the infestations.
Head Lice Fact SheetHead Lice FAQsHead Lice Talking Points English version Head Lice Talking Points Spanish version Head Lice Manual Head Lice Manual (Spanish)
Bedbugs
Bed bugs, small wingless insects that feed solely on blood, are increasingly becoming a problem within residences of all kinds, including homes, apartments, hotels, cruise ships, dormitories and shelters. While bed bugs do not carry disease, their bite can cause allergic skin reactions in susceptible individuals.
Scabies
Scabies is caused by an infestation of the microscopic miteSarcoptes scabei. Infestation is common, found worldwide, and affects people of all races and social classes. This mite burrows into the skin, causing intense itching and irritation. Skin between the fingers, the bend of the elbow or knee, and the shoulder blades are areas most often affected. The intense itching is accompanied by a rash.
See the article here:
Infestations Due to Scabies, Bed Bugs, and Head Lice