The manufacturer of First Alert, the leading brand of carbon monoxide detectors, recommends the following if the alarm goes off: 1  Turn off appliances, or other sources of combustion at once. 2  Immediately get fresh air into the premises by opening doors and windows.
The cause of lice (known medically as pediculosis) is an infestation with one of three types of a parasitic insect. The three kinds of lice that affect humans include: 1  Pediculus humanus capitis (head lice). 2  Pediculus humanus corporis (body lice). 3  Phthirus pubis (pubic lice or crab lice; also called crabs).he three kinds of lice that affect humans include: 1  Pediculus humanus capitis (head lice). 2  Pediculus humanus corporis (body lice). 3  Phthirus pubis (pubic lice or crab lice; also called crabs).
Head lice. Head lice are tiny insects that feed on blood from the human scalp. An infestation of head lice, called pediculosis capitis, most often affects children and usually results from the direct transfer of lice from the hair of one person to the hair of another.ead lice. Head lice are tiny insects that feed on blood from the human scalp. An infestation of head lice, called pediculosis capitis, most often affects children and usually results from the direct transfer of lice from the hair of one person to the hair of another.