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Tuberculosis (TB) is a potentially fatal contagious disease that can affect almost any part of the body but is mainly an infection of the lungs . It is caused by a bacterial microorganism: the tubercle bacillus or Mycobacterium tuberculosis . Alth...
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Tuberculosis (TB) is a potentially fatal contagious disease that can affect almost any part of the body but is mainly an infection of the lungs. It is caused by a bacterial microorganism, the tubercle bacillus or Mycobacterium tuberculosis . Altho...
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Tuberculosis is a chronic, infectious disease that primarily attacks the lungs.
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Tuberculosis (TB) is a contagious and potentially fatal disease that can affect almost any part of the body but manifests mainly as an infection of the lungs. It is caused by a bacterial microorganism, the tubercle bacillus or Mycobacterium tuberc...
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Rheumatic fever (RF) is an illness which arises as a complication of untreated or inadequately treated strep throat infection. Rheumatic fever can seriously damage the valves of the heart.
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Rheumatic fever is an inflammatory disease that may develop after an infection with Streptococcus bacteria (such as strep throat or scarlet fever. The disease can affect the heart, joints, skin, and brain.
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Rheumatic fever (RF) is an illness that occurs as a complication of untreated or inadequately treated strep throat infection. Rheumatic fever causes inflammation of tissues and organs and can result in serious damage to the heart valves, joints, c...
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Rheumatic fever (RF) is an illness that arises as a complication of untreated or inadequately treated strep throat infection. Rheumatic fever can seriously damage the valves of the heart.
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Radiation therapy, sometimes called radiotherapy, x-ray therapy radiation treatment, cobalt therapy, electron beam therapy, or irradiation uses high energy, penetrating waves or particles such as x rays, gamma rays, proton rays, or neutron rays to...
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Radiation therapy uses high powered x-rays or radioactive seeds to kill cancer cells.
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Radiotherapy is the use of high-energy penetrating radiation (x rays, gamma rays, proton rays, and neutron rays) to kill cancer cells.
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Radiation therapy, sometimes called radiotherapy, x-ray therapy radiation treatment, cobalt therapy, electron beam therapy, or irradiation uses high energy, penetrating waves or particles such as x rays, gamma rays, proton rays, or neutron rays to...
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Autoimmune disorders are conditions in which a person's immune system attacks the body's own cells, causing tissue destruction.
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An autoimmune disorder is a condition that occurs when the immune system mistakenly attacks and destroys healthy body tissue. There are more than 80 different types of autoimmune disorders. See also: Immune response
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Autoimmune disorders are conditions in which a person's immune system attacks the body's own cells, causing tissue destruction.
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Diseases in which the immune system attacks the body's own healthy tissues, forming antibodies in an assault on mistakenly identified "foreign invaders. " Autoimmune disorders occur when the body's immune system loses its ability to recognize the ...
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An esophageal perforation is a hole in the esophagus, the tube through which food passes from the mouth to the stomach.
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Myocarditis is inflammation of the heart muscle. See also: Pediatric myocarditis
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Myocarditis is an inflammatory disease of the heart muscle (myocardium) that can result from a variety of causes. While most cases are produced by a viral infection, an inflammation of the heart muscle may also be instigated by toxins, drugs, and ...
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A heart attack is the death of, or damage to, part of the heart muscle because its blood supply is severely reduced or stopped.
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A heart attack is when blood vessels that supply blood to the heart are blocked, preventing enough oxygen from getting to the heart. The heart muscle dies or becomes permanently damaged. Your doctor calls this a myocardial infarction.
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A myocardial infarction, or heart attack, is the death or damage of part of the heart muscle because the supply of blood to the heart muscle is severely reduced or stopped.
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A heart attack is the death of, or damage to, part of the heart muscle because the supply of blood to the heart muscle is severely reduced or stopped.
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A set of related cancers that form in the bone marrow and other blood-producing organs. Leukemia is named after the leukocytes, white blood cells which mutate before maturity and become cancerous. These cells reproduce rapidly, suppressing product...
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Leukemia is a cancer that starts in the organs that make blood, namely the bone marrow and the lymph system. Depending on specific characteristics, leukemia can be divided into two broad types: acute and chronic. Acute leukemias are the rapidly pr...
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Leukemia is a group of bone marrow diseases involving an uncontrolled increase in white blood cells (leukocytes. For information about a specific type of leukemia, see the following: Acute lymphocytic leukemia (ALL; Acute myelogenous leukemia (AML...
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Usually referred to as the flu or grippe, influenza is a highly infectious respiratory disease. The disease is caused by certain strains of the influenza virus. When the virus is inhaled, it attacks cells in the upper respiratory tract, causing su...
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The flu is a contagious infection of the nose, throat, and lungs caused by the influenza virus.
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Usually referred to as the flu or grippe, influenza is a highly infectious respiratory disease. The disease is caused by certain strains of the influenza virus. When the virus is inhaled, it attacks cells in the upper respiratory tract, causing ty...
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Usually referred to as the flu or grippe, influenza is a highly infectious respiratory disease. Its name comes from the Italian word for "influence," because people in eighteenth-century Europe thought that the disease was caused by the influence ...
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Usually referred to as the flu or grippe, influenza is a highly infectious respiratory disease caused by certain strains of influenza virus. When the virus is inhaled it attacks cells in the upper respiratory tract causing typical flu symptoms suc...
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Influenza is a potentially severe acute respiratory illness caused by various strains of the influenza virus. The different strains all produce characteristic symptoms, and because major outbreaks are associated with increased mortality, occurrenc...
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Acute (sudden) kidney failure is the sudden loss of the ability of the kidneys to remove waste and concentrate urine without losing electrolytes.
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Chronic kidney failure occurs when disease or dis- order damages the kidneys so that they can no longer adequately remove fluids and wastes from the body or maintain proper levels of kidney-regulated chemicals in the bloodstream.
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Chronic kidney failure occurs when disease or disorder damages the kidneys so that they are no longer capable of adequately removing fluids and wastes from the body or of maintaining the proper level of certain kidney-regulated chemicals in the bl...
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HIV (human immunodeficiency virus) was identified in 1983 by the French scientist Luc Montagier and his staff at the Pasteur Institute in Paris. Ever since that discovery, scientists have been searching for ways to treat those infected with HIV, a...
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Human immunodeficiency virus (HIV) is a retrovirus that causes acquired immune deficiency syndrome (AIDS) by infecting helper T cells of the immune system. The most common serotype, HIV-1, is distributed worldwide, while HIV-2 is primarily confine...
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Acquired immunodeficiency syndrome, or AIDS, is the final, life-threatening stage of infection with any of the human immunodeficiency viruses (HIV-1, its many subtypes, or HIV-2), which are transmitted from person to person sexually (including via...
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