Halos around the sun and moon are associated with storms. On the night Superstorm Sandy made landfall in 2012, we received photos of lunar halos from across the U.S., and even as far west in the U.S. as the state of Washington.
Lice infestations (pediculosis and pthiriasis) are spread most commonly by close person-to-person contact. Dogs, cats, and other pets do not play a role in the transmission of human lice.Lice move by crawling; they cannot hop or fly.he three types of lice that live on humans are: 1  Pediculus humanus capitis (head louse), 2  Pediculus humanus corporis (body louse, clothes louse), and. 3  Pthirus pubis (crab louse, pubic louse).
Occasionally, head lice may be acquired from contact with clothing (such as hats, scarves, and coats) or other personal items (such as brushes or towels) that belong to an infested person. Preschool and elementary-age children (ages 3-11) and their families are infested most often.he cause of head lice is an infestation with a parasitic insect known as Pediculus humanus capitis. This parasite is more commonly known as head lice -- so both the condition and the parasite that causes it go by the same name. A head louse (head lice is plural) is a small, wingless insect.