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MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.

MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.

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COVID-19 Testing - National Library of Medicine

Welcome to NewMedicalTerms, your ultimate guide to the explanations and definitions of the majority of medical terms you may see.

... test you buy has been authorized by the U.S. Food and Drug Administration (FDA). Order 4 free ... for your household, if you live in the U.S. The tests are from the U.S. government. Even ...

Smallpox - National Library of Medicine

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... who do recover may have severe scars. The U.S. stopped routine smallpox vaccinations in 1972. Military and ... risk groups continue to get the vaccine. The U.S. has increased its supply of the vaccine in ...

Acute Flaccid Myelitis - National Library of Medicine

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What is acute flaccid myelitis (AFM)? Acute flaccid myelitis (AFM) is a neurologic disease. It is rare, but serious. It affects an area of the spinal cord ...

American Indian and Alaska Native Health - National Library of Medicine

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Every racial or ethnic group has specific health concerns. Differences in the health of groups can result from: Genetics Environmental factors Access to care ...

Anthrax - National Library of Medicine

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... the attacks, someone purposely spread anthrax through the U.S. mail. This killed five people and made 22 ...

Burns - National Library of Medicine

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A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires ...

Chagas Disease - National Library of Medicine

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... who were infected before they moved to the U.S.What causes Chagas disease? Chagas disease is caused ...

Childhood Vaccines - National Library of Medicine

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What are vaccines? Vaccines are injections (shots), liquids, pills, or nasal sprays that you take to teach the immune system to recognize and defend against ...

Cholera - National Library of Medicine

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... of them is available for adults in the U.S. Very few Americans need it, because most people ...

Cold Sores - National Library of Medicine

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... herpes virus infects more than half of the U.S. population by the time they reach their 20s. ...

Complementary and Integrative Medicine - National Library of Medicine

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Many Americans use medical treatments that are not part of mainstream medicine. When you are using these types of care, it may be called complementary, integrative, ...

COVID-19 Vaccines - National Library of Medicine

Welcome to NewMedicalTerms, your ultimate guide to the explanations and definitions of the majority of medical terms you may see.

... COVID-19. Some have been approved by the U.S. Food and Drug Administration (FDA). Others are being ...

Dietary Fats - National Library of Medicine

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... in partially hydrogenated oils (PHOs). By 2018, most U.S. companies will not be allowed to add PHOs ...

Drug Safety - National Library of Medicine

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... United States, it must be approved by the U.S. Food and Drug Administration (FDA). This is true ...

Eating Disorders - National Library of Medicine

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... is the most common eating disorder in the U.S. Bulimia nervosa. People with bulimia nervosa also have ...

Food Labeling - National Library of Medicine

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All packaged foods and beverages in the U.S. have food labels. These "Nutrition Facts" labels can help you make smarter food choices and eat a healthy diet. Before you read the ...

Foodborne Illness - National Library of Medicine

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Each year, around 48 million people in the United States get sick from contaminated food. Common causes include bacteria and viruses. Less often, the cause ...

Gastroenteritis - National Library of Medicine

Welcome to NewMedicalTerms, your ultimate guide to the explanations and definitions of the majority of medical terms you may see.

... is the second most common illness in the U.S. The cause is often a norovirus infection. It ...

Gum Disease - National Library of Medicine

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... have gum disease, you're not alone. Many U.S. adults currently have some form of the disease. ...

Health Disparities - National Library of Medicine

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Health disparities are health differences between different groups of people. These health differences may include: How many people get certain diseases How ...