Although reliable data on how many people in the United States get head lice each year are not available, an estimated 6 million to 12 million infestationsIn general, the term "infestation" refers to parasitic diseases caused by animals such as arthropods (i.e. mites, ticks, and lice) and worms, but excluding (except) conditions caused by protozoa, fungi, bacteria, and viruses, which are called infections.https://en.wikipedia.org › wiki › Infestation
One fact that researchers do agree on is that lice were a common, household problem. Common for even the royal, higher society as well as the lower class living. Medieval folklore suggests that lard was used to try and suffocate lice and nits off of a scalp.
In the middle ages, humans couldn't get away from lice. They were an unavoidable part of their life and lice didn't discriminate; they infected all parts of society from serfs to royals. People in the Middle Ages took lice to their grave as well.
Whereas prevalence is, on average, only about 1% in North America, a greater percentage of children are infested in some other countries.
The 1800s Lice Treatments
Head lice were rampant throughout Victorian Britain. A report in 1870 estimated 90% of children carried the parasite at any given time. The Woman's Book, published in 1894, recommended washing hair once a month. For treating head lice, it suggests a concoction of vinegar and lard.
In fact, adults can get lice anytime their hair is in close contact with the hair of someone who has lice. Whether public transportation, concerts, or crowded areas, any situation in which there is hair to hair contact puts adults at risk of getting lice.
The 1600s – 1700s
In the 1600s, humans started trying different concoctions to rid themselves of the dreaded lice. Parents were told to give their children everything from tomato juice to a drink mix made of vinegar and cheese whey.
Head lice are a common problem, especially for kids. They spread easily from person to person, and sometimes are tough to get rid of. Their bites can make a child's scalp itchy and irritated, and scratching can lead to infection. Head lice are annoying, but they're not dangerous and they don't spread disease.
Head lice infestations are common, affecting an estimated 6 million to 12 million people each year. Lice are most common among school-age children who are more likely to have close contact with each other or share combs, brushes, hats and other objects that touch the hair.
Head lice are not the same as body lice. People of all genders, ages, and races can get head lice. Having head lice doesn't indicate a person's improper hygiene, and head lice don't carry diseases.
One is universal and evolved on modern human heads. The other, found only in the Americas, they think probably evolved on an earlier and now extinct human species, and jumped onto Homo sapiens during an encounter in Asia 25,000 to 30,000 years ago, perhaps during fights, sex, the sharing of clothes or even cannibalism.
The head lice may have become resistant to the treatment. If the treatment used does not kill the head lice, your health care provider and pharmacist can help you be sure the treatment was used correctly and may recommend a completely different product if they think the head lice are resistant to the first treatment.
If you became infested with head lice, the Egyptians treated themselves with an aromatic head lice formula made of water, vinegar, oil of cinnamon, oil of rosemary, oil of terebinth. They would treat ancient head lice with the formula and use a fine tooth comb.
The oldest physical evidence of head lice on a human was a nit found on the hair of a 10,000-year-old body at an archeological site in Brazil. Lice combs have been found in the tombs of Egyptian royalty, and even Cleopatra was said to have solid gold lice combs buried with her.
'' Generally, children are less protective of their personal space, more likely to come into physical contact with one another, and more likely to share personal items like clothing or hairbrushes, which make it easy for the bugs to travel from person to person.
Some studies suggest that girls get head lice more often than boys, probably due to more frequent head-to-head contact. In the United States, infestation with head lice is much less common among African-Americans than among persons of other races.
Head lice should not be considered as a medical or public health hazard. Head lice are not known to spread disease. Head lice can be an annoyance because their presence may cause itching and loss of sleep.
As long as there's a food source readily available, an adult louse can live for as long as 30 days on a human. However, lice can continue to multiply. Female lice lay up to six eggs each day.
Rats and lice tormented the troops by day and night. Oversized rats, bloated by the food and waste of stationary armies, helped spread disease and were a constant irritant. In 1918, doctors also identified lice as the cause of trench fever, which plagued the troops with headaches, fevers, and muscle pain.
'Cooties' was the nickname American soldiers gave to body lice – the itchy little bugs that burrowed into skin, hair, clothing, blankets and just about anything made of natural materials. For many soldiers, cooties were as relentless as their human enemies.
The ancients managed their lice by suffering through them, combing them out, affectionately picking them off each other's heads, dousing them in oil, or simply shaving. (Thus the wigs.)
Infestation timeline
So if you look on the scalp and see no visible adult lice and several small nits, it's likely that you've caught lice in the earlier stages and had them for less than 2 weeks. Nits and nymphs: 1.5 to 2 weeks. If you see nits and small, moving lice, you've likely had lice for 1.5 to 2 weeks.
While head lice live in your hair and feed on your scalp, body lice usually live in your clothes and bedding. They travel to your skin several times a day to feed on blood. Your clothing seams are the most common places for body lice to lay their eggs (nits).
You Have to Treat Them
Head lice will not go away on their own. If you think your child has an infestation, there are several steps you should take right away. Call your doctor to confirm the diagnosis. Notify your child's day care or school so other students can be checked.