are lice nits and eggs contagious?
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The first and most important thing to understand about spreading lice is that you are only contagious when carrying an adult female fertilized louse because she is the egg (nit) layer. The other thing to understand is if you have hair on your head you can get lice.
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Hair gels, hairspray, oils or other non-medicated hair products including dandruff shampoo will not kill lice or prevent eggs from hatching or sticking to the hair. 4. Old-fashion remedies aren't completely effective. Vinegar rinses or mayonnaise might kill lice but do not kill nits or detach them from hair.
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Intestinal parasites are contagious to other animals and humans. Because they primarily inhabit the GI tract, larvae, or eggs, are passed in the feces. The infective larvae then inhabit the soil around the feces, leaving other dogs, and children, vulnerable to accidental ingestion and subsequent infection.
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Nits may remain after lice have gone. They are empty eggshells and stick strongly to hair. They will eventually fall out. If you prefer, a fine-toothed 'nit comb' can remove them.
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A female louse lays 3-5 eggs a day. The eggs hatch in 7-10 days and it takes another 7-10 day for the louse to mature and lay their own eggs. Do pets get head lice? Head lice cannot be “caught” from pets and cannot survive on pets.
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After the first treatment, when the egg-laying lice are eliminated, you are no longer contagious. To stop the cycle of lice you must stop the egg laying first, then remove the nits. Timing is everything and you must complete the 3 well-timed treatments to ensure you are lice-free.
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Although lice can spread on inanimate objects, they won't spread between you and your pets. Even pets with hair, like dogs and cats, don't spread lice.
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Pyrethrins can only kill live lice, not unhatched eggs (nits). A second treatment is recommended 9 to 10 days after the first treatment to kill any newly hatched lice before they can produce new eggs.
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The life span of an adult louse on a host ranges up to 30 days. During this time, the female head louse can deposit about 90 eggs. After incubating for seven to 10 days, the nits hatch and, after another 10 days, mature into adult head lice and the cycle begins again.
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The most common way pubic lice are spread is through sexual contact, including vaginal, anal and oral sex. Using condoms and other methods of barrier contraception doesn't protect you against pubic lice. Other types of close bodily contact, such as hugging and kissing, can also spread the lice.
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Roundworms are contagious through contact with infected stool of people or animals. Roundworms can also be contracted by contact with infected surfaces (usually soil and dirt).
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Three forms of head lice exist: nits, nymphs, and mature adults. Nits are lice eggs that attach to the hair shaft and usually hatch within a week.
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*New generations of lice are becoming resistant to many of the chemicals in the over the counter treatments. Many of these treatments have a certain success in killing the hatched bugs, but not their eggs. The survival of such eggs makes the re-infestation a common problem.
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After the first treatment, you are no longer contagious (and therefore should be allowed to return to the institution). Any nits that are still viable will hatch and be removed in subsequent treatments before they can cause any problems.
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Lice lay nits on hair shafts close to the scalp, where the temperature is perfect for keeping warm until they hatch. Nits look a bit like dandruff, but aren't removed by brushing or shaking them off. Unless a child has many head lice, it's more common to see nits in the hair than live lice crawling on the scalp.
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Are head lice and nits the same thing? No they're not. Nits are the tiny blackish or brown eggs that cling to the root of the hair and can be a real pain to remove, leading to unpleasant scenes at sunset. Once the lice have hatched they leave behind white eggshells that look similar to dandruff.
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Anyone who comes in head-to-head contact with someone who already has head lice is at greatest risk. Spread by contact with clothing (such as hats, scarves, coats) or other personal items (such as combs, brushes, or towels) used by an infested person is uncommon.