Articles In This Section
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Measles
Measles is rare in the United States because most kids get the measles vaccine. But some teens can still get measles. Here are the basics about this very contagious disease.
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Ebola
An outbreak of the deadly Ebola virus in Africa has many people concerned. But when people with Ebola are properly diagnosed, isolated, and cared for, the risk of passing the disease to others is low.
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Hib Disease (Haemophilus Influenzae Type b)
Hib is pretty rare in U.S. teens because most get vaccinated as babies. But for people who do get Hib, it can sometimes be serious. Here's more information about this bacterial infection and how it might show up.
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Head Lice
Lice aren't dangerous, but they do spread from person to person easily. They can also be hard to get rid of. Find out how to prevent lice -- and what to do if someone you know has them.
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Abscess
People can get abscesses on the skin, under the skin, in a tooth, or even inside the body. Most abscesses are caused by infection, so it can help to know what to do. Find out in this article for teens.
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Erythema Multiforme
Erythema multiforme is a rash that appears as red, target-shaped ("bulls-eye") patches or sores on the skin. Find out what causes it - and what to do - in this article for teens.
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Shingles
Shingles is rare in teens with healthy immune systems, and mostly affects older adults. But it's good to know the basics about this skin rash, which is caused by the same virus that causes chickenpox.
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Paronychia
Paronychia is an infection of the skin around a fingernail or toenail. Most of the time, it's not serious. Find out what causes it, what to do, and how to prevent it.
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Peritonsillar Abscess
A peritonsillar abscess is an area of pus-filled tissue at the back of the mouth, next to one of the tonsils. Find out how it happens and what to do.
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Tapeworm
A worm that grows in the intestines by eating your food is pretty icky to think about. This article provides the basics on tapeworm infections and how to prevent them.
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Rabies
You probably know that you can get rabies from an animal bite. But what is rabies, and what does it do to the body? Find out in this article for teens.
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Dengue Fever
This infectious disease can cause high fevers, headaches, rashes, and pain throughout the body. Find out what to do about dengue fever - and how to avoid it - in this article for teens.
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Cholera
Cholera is an intestinal infection that mostly affects people in tropical regions. Find out more about cholera in this article for teens.
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Food Poisoning
The germs that get into food and cause food poisoning are tiny, but can have a powerful effect on the body. Find out what to do if you get food poisoning - and how to prevent it.
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E. Coli
Undercooked burgers and unwashed produce are among the foods that can harbor E. coli bacteria and lead to infection and severe diarrhea. Here's how to protect yourself.
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Bedbugs
Bedbugs are in the news because of recent infestations. Learn the telltale signs of these irritating pests - and how to deal with a bite.
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Bacterial Vaginosis
BV is the most common vaginal infection. Although it's a mild infection, it can cause serious problems if it's not treated. Find out how to recognize BV and what to do about it in this article for teens.
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Finding Low-Cost Medical Care
If you need medical care but don't think you can afford it, you're not alone. Get tips on finding low-cost or free care in this article for teens.
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5 Ways to Fight the Flu
Get tips for fending off the flu in this article for teens.
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Flu Center
Get the basics on how flu spreads and how to protect yourself.
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Molluscum Contagiosum
The name sounds dramatic, like a Harry Potter spell. Luckily, molluscum contagiosum isn't a big deal. Find out what to do about it in this article for teens.
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5 Tips for Surviving Shots
If you're afraid of shots, you're not alone. Next time your doc asks you to roll up your sleeve, try these tips.
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When Can I Go Back to School If I Have the Flu?
Find out what the experts have to say.
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Strep Test (Video)
This video shows what it's like to get a strep test.
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What’s the Difference Between Infectious and Contagious?
Find out what the experts have to say.
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Stomachaches
Lots of different problems can cause similar kinds of stomach pain - not all of them related to the digestive system. Here are some clues about what could be going on.
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MRSA
MRSA is a type of bacteria that the usual antibiotics can't tackle anymore. The good news is that there are some simple ways to protect yourself from being infected. Find out how.
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The 5-Second Rule
Almost everyone has dropped food on the floor and still wanted to eat it. Does the 5-second rule give you the excuse you need? Or is it just a myth?
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Ingrown Toenails
A toenail is ingrown when it begins to break through and grow into the soft skin of the toe. Find out more about ingrown toenails.
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Tuberculosis
Tuberculosis (TB) is making a comeback in the United States today - particularly among the homeless, those in prison, and those rendered susceptible because of HIV infection.
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Tonsils and Tonsillectomies
Everybody's heard of tonsils, but not everyone knows what tonsils do in the body or why they may need to be removed. Find out here.
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Enlarged Adenoids
Often, tonsils and adenoids are surgically removed at the same time. So, what are adenoids exactly?
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Rocky Mountain Spotted Fever
Rocky Mountain spotted fever (RMSF) is a disease caused by a bacteria that is carried by certain types of ticks. Learn about the signs and symptoms of RMSF and tips for preventing infection in this article.
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Cold Sores (HSV-1)
Cold sores (also known as fever blisters) are pretty common and lots of people get them. So what causes them and what can you do?
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Mad Cow Disease
It's called mad cow disease because it affects a cow's nervous system, causing a cow to act strangely. But how does this disease affect people?
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Mononucleosis
It's sometimes called "the kissing disease," but kissing is just one of the ways that someone can catch mono.
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Smallpox
You're probably wondering what smallpox is and why people are worried about it. There seems to be a lot of fear and confusion about this disease - so it helps to learn the facts.
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Anthrax
It's extremely unlikely that you or someone you know could get anthrax. But what exactly is anthrax, and should you be concerned about it?
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West Nile Virus
You've probably heard about West Nile virus and know that mosquitoes have something to do with it. Learn more about the virus, including how you can protect yourself.
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Warts
Most warts are easy to treat and are rarely cause for alarm. Read this article for more information on warts and how to get rid of them.
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Osteomyelitis
Sometimes a bad cut that gets infected can lead to even worse things, like a bone infection called osteomyelitis. The easiest way to protect yourself is to practice good hygiene.
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Hepatitis B (HBV)
Hepatitis B can move from one person to another through blood and other bodily fluids. For this reason, people usually get it through unprotected sex or by sharing needles.
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Bronchitis
Bronchitis is an inflammation of the lining of the bronchial tubes. When a person has bronchitis, it may be harder for air to pass in and out of the lungs.
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Eczema
Eczema is a common skin problem among teens. If you have eczema, read this article to find out more about it and how you can deal with the skin stress.
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Urinary Tract Infections
A urinary tract infection (UTI) is one of the most common reasons that teens visit a doctor. Learn about the symptoms of UTIs, how they're treated, and more in this article.
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Pneumonia
Pneumonia is a common lung infection that can usually be treated without a hospital stay.
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What to Do if You Get the Flu
You've probably heard warnings about flu season. If you do get the flu this year, read this article on how to feel better.
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The Flu Vaccine
Doctors recommend that all teens get vaccinated against the flu. The good news is, it doesn't have to be a shot. Here are the facts on flu vaccines.
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Gastrointestinal Infections and Diarrhea
Nearly everybody gets diarrhea every once in a while, and it's usually caused by gastrointestinal infections. It's nothing to be embarrassed about. Read this article to learn more.
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Jock Itch
Jock itch is a pretty common fungal infection of the groin and upper thighs. It is generally easy to treat - and avoid - by following a few simple steps.
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Ringworm
Ringworm isn't a worm at all - it's the name for a type of fungal skin infection. The good news is that ringworm is easy to treat.
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Athlete’s Foot
Although the name athlete's foot sounds funny, if you have this skin infection, you're probably not laughing. The good news is that it is generally easy to treat.
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Lyme Disease
Lyme disease can be treated if it's caught early. So read this to find out what causes it, how it's treated, and how to prevent it.
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Tetanus
Tetanus occurs when a certain type of bacterial infection grows in a contaminated wound. Because it can be serious, it's important to get immunized. Find out about tetanus and how to protect yourself against it.
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Staph Infections
Staph bacteria can live harmlessly on many skin surfaces. But the bacteria can get into wounds and cause an infection. Get the details in this article for teens.
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Shigellosis
Shigellosis is an intestinal infection caused by bacteria that can give a person bloody diarrhea and cause intestinal pain. Good hand washing is the best way to prevent shigellosis.
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Scabies
Scabies is a skin infection caused by tiny mites that burrow into the top layer of human skin to lay their eggs. Learn how scabies is spread, how to avoid it, and how doctors treat it.
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Salmonellosis
People often think of salmonellosis as food poisoning, but food is only one way the bacteria Salmonella can be spread.
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Impetigo
Impetigo is a skin infection caused by fairly common bacteria. Read this article to learn how to recognize it and what to do about it.
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Swimmer’s Ear (External Otitis)
External otitis (swimmer's ear) is an infection of the ear canal that can be caused by different types of bacteria or fungi. Find out how to prevent or treat it.
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Cellulitis
Cellulitis is a skin infection that involves areas of tissue just below the skin's surface. It can affect any part of the body, but it's most common on exposed areas, such as the face, arms, or lower legs.
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Appendicitis
Appendicitis is an inflammation of the appendix, and requires surgery. Find out the symptoms and what doctors do to treat it.
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HIV Testing Resources
Often the only way to know if someone is infected with HIV is through testing. Here are the facts on what's involved in getting tested — and who should get tested for HIV and why.
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How Do People Get AIDS?
AIDS, or acquired immunodeficiency syndrome, is a disease where the body is unable to fight off many infectious diseases as it normally could. Find out how AIDS is spread and how to protect yourself against it.
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What’s My Lyme Disease Risk?
Is the thought of Lyme disease making you feel you'll be safer in the comfort of your room than the great outdoors? This article can help you assess your Lyme disease risk.
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Why Should I Care About Germs?
Germs are tiny organisms that can cause disease - and they're so small that they can creep into your system without you noticing. Find out how to protect yourself.
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Hepatitis
Hepatitis, an infectious liver disease, is more contagious than HIV, and just like HIV, there is no cure. Find out how to protect yourself.
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HIV and AIDS
There is no cure for AIDS, which is why prevention is so important. Get the facts on HIV/AIDS, as well as how it affects the body and is treated, in this article.
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Gonorrhea
Gonorrhea can be very dangerous if it is left untreated, even in someone who has mild or no symptoms. For information about how to protect yourself, read this article.
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Genital Warts (HPV)
You've probably heard lots about sexually transmitted diseases. The good news is that STDs can be prevented. For information on how to protect yourself and how to treat genital warts, read this article.
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Genital Herpes
You've probably heard lots of discouraging news about sexually transmitted diseases. The good news is that STDs can be prevented. Read about how to protect yourself.
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Trichomoniasis
You've probably heard lots of discouraging news about sexually transmitted diseases. The good news is that STDs can be prevented. Read about how to protect yourself.
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Flu Facts
Every year from October to May, millions of people across the United States come down with the flu. Get the facts on the flu - including how to avoid it.
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Tonsillitis
You wake up and your throat is swollen and you have a fever. Could it be tonsillitis? Find out what tonsillitis is, how to treat it, and how to prevent it.
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Vaginal Yeast Infections
What exactly is a yeast infection? Can anything be done to prevent it?
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Coping With Colds
Most teens get between two and four colds each year. Read this article for the facts on chicken soup, cold medicines, and other ways to feel better.
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Chlamydia
Chlamydia is an STD that often has no symptoms, so lots of people can have it and not know it. Read this article to learn how to protect yourself.
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Syphilis
You've probably heard lots of discouraging news about sexually transmitted diseases. The good news is that STDs can be prevented. Read this article to learn how to protect yourself.
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About Sexually Transmitted Diseases (STDs)
You've probably heard lots of discouraging news about sexually transmitted diseases. The good news is that STDs can be prevented. Find out how to protect yourself.
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Pubic Lice (Crabs)
Pubic lice, or "crabs," are tiny insects that can crawl from the pubic hair of one person to another during sex. Read about symptoms, treatment, and prevention.
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Pelvic Inflammatory Disease (PID)
Pelvic inflammatory disease, sometimes called PID, is an infection of the fallopian tubes, uterus, cervix, or ovaries. Learn how to protect yourself.
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Strep Throat
Strep throat is a common infection that usually needs to be treated with antibiotics. Find out how to recognize the signs of strep throat and what to expect if you have it.
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How Long Is Mono Contagious?
Once someone gets mono, the virus stays in that person's body for life. This doesn't mean that if you've had mono you are always contagious, but it does mean the virus may surface from time to time and possibly infect someone else. Here are the facts on how mono works.
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Toxic Shock Syndrome
Although toxic shock syndrome (TSS) can be serious, it's a very rare illness.
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Sinusitis
If you've been waking up with headaches, feeling stuffy or congested, and experiencing swelling around your eyes, you may have sinusitis - an infection of the sinus air spaces found in the bones around the nose.
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Meningitis
You may be wondering what the deal is with meningitis because you've heard frightening stuff about meningitis outbreaks in the news.
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Encephalitis
Encephalitis is an inflammation of the brain. Although encephalitis sounds scary, understanding its causes, symptoms, and treatment can help you feel prepared to deal with it if you ever need to.
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Pinkeye (Conjunctivitis)
Conjunctivitis, commonly called pinkeye, is an inflammation of the tissue covering the eye and inner surface of the eyelid.