Head lice / louse
The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans that causes head lice infestation (pediculosis capitis).[1]
Head lice are wingless insects spending their entire lives on the human scalp and feeding exclusively on human blood.[1] Humans are the only known hosts of this specific parasite, while chimpanzees host a closely related species, Pediculus schaeffi. Other species of lice infest most orders of mammals and all orders of birds,[1] as well as other parts of the human body.
Lice differ from other hematophagic ectoparasites such as fleas in spending their entire lifecycle on a host.[2] Head lice cannot fly, and their short, stumpy legs render them incapable of jumping, or even walking efficiently on flat surfaces.[2]
The non-disease-carrying head louse differs from the related disease-carrying body louse (Pediculus humanus humanus) in preferring to attach eggs to scalp hair rather than to clothing. The two subspecies are morphologically almost identical, but do not normally interbreed, although they will do so in laboratory conditions. From genetic studies, they are thought to have diverged as subspecies about 30,000–110,000 years ago, when many humans began to wear a significant amount of clothing.[3][4] A much more distantly related species of hair-clinging louse, the pubic or crab louse (Pthirus pubis), also infests humans. It is visually different from the other two species and is much closer in appearance to the lice which infest other primates.[5] Lice infestation of any part of the body is known as pediculosis.[6]
Head lice (especially in children) have been, and still are, subject to various eradication campaigns. Unlike body lice, head lice are not the vectors of any known diseases. Except for rare secondary infections that result from scratching at bites, head lice are harmless, and they have been regarded by some as essentially a cosmetic rather than a medical problem. Head lice infestations might be beneficial in helping to foster a natural immune response against lice which helps humans in defense against the far more dangerous body louse, which is capable of transmission of dangerous diseases.[7]
Fort Valley
Fort Valley is a city in and the county seat of Peach County, Georgia, United States.[5] As of the 2010 census, the city had a population of 9,815.[6]
The city is in the Macon metropolitan area.
The town’s name is a mystery, as it has never had a fort. Historians believe that the name was mistakenly changed in a transcription error when the post office was named; the area was originally thought to have been called Fox Valley.[1]
Founded in 1836, Fort Valley was incorporated as a town in 1854 and as a city in 1907. In 1924 Fort Valley was the designated seat of the newly formed Peach County.[7]
Fort Valley was the backdrop for a Life magazine feature story in the March 22, 1943 edition. The World War II-era story focused on the town’s sponsoring of the “Ham and Egg Show,” a contest held by African-American farmers to highlight ham and poultry production in Peach County, Georgia.[8]