Small insects that feed on human blood by biting through the skin. They are most active between 2:00 and 5:00 am. They can travel 10 to 15 feet to feed and go without feeding for up to 6 months. They cause itchy bites. Bedbugs are not known to transmit or spread disease.

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Biting is very common among young children but usually does not lead to serious infectious disease issues. If the skin is broken, bacteria introduced into the wound can cause a tissue infection that needs to be treated by a health professional. If blood is drawn into the mouth of the biter or if the

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These are bacterial infections of the skin that usually begin from a scratch or bug bite and progress to a red nodule that fills with pus. Boils are superficial infections with a thin layer of skin over fluid; abscesses are generally larger and deeper with redness and painful swelling over an area filled

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Bronchiolitis is a common respiratory illness among infants. One of its symptoms is trouble breathing, which can be scary for parents and young children. Read on for more information from the American Academy of Pediatrics about bronchiolitis, causes, signs and symptoms, how to treat it, and how to prevent

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COVID-19, discovered in December 2019, quickly became a global pandemic. Doctors and researchers continue to learn more about it every day. Safe and effective vaccines are now available, offering hope for an end to the pandemic. Until everyone is vaccinated, however, the virus continues to spread.

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A type of bacteria that can cause infection of the intestines

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An illness with rash and fever caused by the varicella-zoster virus

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A spore- and toxin-forming bacteria that causes diarrhea

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Most infections are caused by germs called viruses and bacteria. While you may be able to keep germs from spreading, you can't always keep your child from getting sick. It is important for parents to know how to keep their children healthy and what to do when they get sick. Read on to learn more from

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Information and guidance on when COVID-19 is diagnosed or suspected.

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Information and guidance on preventing COVID-19 infection.

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Information and guidance on similarities and differences of COVID-19 and influenza infections.

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An intestinal infection caused by a parasite (Cryptosporidium hominis or C parvum)

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A viral infection common in children (Up to 70% of normal children aged 1 to 3 years in group care settings excrete cytomegalovirus [CMV].)

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Early childhood caries (commonly called cavities) is the most common chronic disease of childhood. Caries are the result of an infectious disease process that damages tooth structure and makes holes in the teeth. The consequences of early childhood caries are much more than unattractive teeth. Early

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A shiny red rash, pinker than usual skin, or red bumps in the diaper area that may be caused by a yeast called Candida. There are other causes of diaper rash that produce a similar skin appearance but are not caused by an infection.

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Although many types of Escherichia coli (E coli) bacteria live normally in the intestinal tract, at least 5 types are known to cause diarrhea. Shiga toxin–producing E coli has caused numerous outbreaks in group care settings. Infections with Shiga toxin–producing E coli may be associated with other

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An illness in which someone develops more watery and frequent stools than is typical for that person. Diarrhea can be caused by changes in diet, such as drinking excessive amount of fruit juice, eating more than the usual amounts of certain foods, and the use of some medications. Diarrhea also can be

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There are 2 common types of ear infections: otitis media (middle ear infection) and otitis externa (swimmer’s ear). Most ear infections of young children occur in the middle ear.

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Fever is an elevation of the normal body temperature. Fever is most commonly caused by a viral or bacterial infection, but it can be a sign of illnesses not caused by infections, such as exercising in a very warm environment, rheumatoid arthritis, a reaction to a vaccine or medication, or cancer.

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Common viral infection with rash occurring 1 to 3 weeks after infection

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An intestinal infection caused by a parasite (Giardia intestinalis)

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Human immunodeficiency virus (HIV) infection affects the body in a wide variety of ways. In the most severe infection, the virus progressively destroys the body’s immune system, causing a condition called acquired immunodeficiency syndrome (AIDS). With early testing and appropriate treatment, children

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Depends on the site of infection. May include

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A common set of symptoms associated with viral infections that are most frequently seen in the summer and fall. Despite its scary name, this illness generally is mild. Most commonly caused by coxsackievirus A16 and enterovirus 71.

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Fecal-oral route: Contact with feces of children who are infected. This generally involves an infected child contaminating his own fingers, then touching an object that another child touches. The child who touched the contaminated surface then puts her fingers into her own mouth or another person’s

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Yes, if a child with known hepatitis B exhibits any of the following:

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In early childhood, herpes simplex virus most commonly causes blister-like sores in the mouth and around the lips and on skin that is in contact with the mouth, such as a sucked thumb or finger.

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Impetigo is a common skin infection caused by streptococcal or staphylococcal bacteria.

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A contagious disease caused by a group of respiratory viruses called influenza viruses

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HIV (human immunodeficiency virus) is a virus that can lead to AIDS (acquired immunodeficiency syndrome). While there is no cure for HIV, early diagnosis and treatment are very effective at keeping people healthy. In addition, there are things you can do to prevent getting HIV. Read on to learn more

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Yes, at the end of the program or school day.

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An infection caused by a type of bacteria, known as spirochetes, that is transmitted when particular types of ticks attach to a person’s skin and feed on that person’s blood. These ticks are very small, only a few millimeters (about the size of a freckle); the ticks that transit Lyme disease are

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Yes.

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An infectious disease causing swelling or inflammation of the tissue covering the spinal cord and brain.

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