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Legionnaires' Disease Learning Center
- AIDS
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- Aging
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Acquired immune deficiency syndrome (AIDS) is an infectious disease caused by the human immunodeficiency virus (HIV). It was first recognized in the United States in 1981. AIDS is the advanced form of infection with the HIV virus, which may not ca...
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AIDS (acquired immune deficiency syndrome) is the final and most serious stage of HIV disease, which causes severe damage to the immune system.
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Acquired immunodeficiency syndrome (AIDS) is the final and most serious stage of the disease caused by the human immunodeficiency virus. Symptoms begin when an HIV-positive person presents a CD4-cell (also called T cell, a type of immune cell) cou...
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Acquired immune deficiency syndrome (AIDS) is an infectious disease caused by the human immunodeficiency virus (HIV). AIDS is the advanced form of infection caused by HIV and typically only manifests itself after a long latency period after initia...
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Acquired immune deficiency syndrome (AIDS) is an infectious disease caused by the human immunodeficiency virus (HIV). It was first recognized in the United States in 1981. AIDS is the advanced form of infection with the HIV virus, which may not ca...
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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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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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Diabetes is a chronic (lifelong) disease marked by high levels of sugar in the blood. See also: Gestational diabetes; Type 1 diabetes; Type 2 diabetes; Metabolic syndrome.
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Diabetes is a chronic (lifelong) disease marked by high levels of sugar in the blood. Those with diabetes are at high risk for a number of complications. See also: Diabetes; Gestational diabetes; Metabolic syndrome; Type 1 diabetes; Type 2 diabetes.
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Gestational diabetes mellitus (GDM) is a condition that occurs during pregnancy . Like other forms of diabetes, GDM involves a defect in the way the body processes and uses sugars (glucose) in the diet. Gestational diabetes, however, has a number ...
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Diabetes mellitus is a condition in which the pancreas no longer produces enough insulin or when cells stop responding to the insulin that is produced, so that glucose in the blood cannot be absorbed into the cells of the body. Symptoms include fr...
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Diabetes mellitus describes a group of diseases in which there is an elevated level of the sugar glucose, the body's main source of energy for cellular functions, in the blood. The level of glucose, as well as other "fuel" molecules, is increased ...
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Diabetes mellitus is a chronic disease in which the body is not able to correctly process glucose for cell energy due to either an insufficient amount of the hormone insulin or a physical resistance to the insulin the body does produce. Without pr...
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Diabetes is the Greek term for "passing through," a phrase used to describe multiple diseases characterized by excessive urination. There are multiple forms of diabetes. The most frequently described is diabetes mellitus, a chronic disorder involv...
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Diabetes mellitus is a common metabolic disorder resulting from defects in insulin action, insulin production, or both. Insulin, a hormone secreted by the pancreas, helps the body use and store glucose produced during the digestion of food. Charac...
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Diabetes mellitus is a condition that occurs when either the pancreas does not produce enough insulin or the body's cells stop responding to the insulin that is produced. In either case, glucose in the blood cannot be absorbed or used by the cells...
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A serious disorder caused by an absence of or insufficient amount of insulin in the bloodstream. Insulin is a hormone produced by the pancreas in varying amounts, depending on the concentration of glucose (sugar). When the pancreas is unable to se...
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Gestational diabetes is a condition that occurs during pregnancy . Like other forms of diabetes, gestational diabetes involves a defect in the way the body processes and uses sugars (glucose) in the diet. Gestational diabetes, however, has a numbe...
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Smoking is the inhalation of the smoke of burning tobacco encased in cigarettes, pipes, and cigars. Casual smoking is the act of smoking only occasionally, usually in a social situation or to relieve stress . A smoking habit is a physical addictio...
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Question: What are the negative effects of smoking? Answer: Smokers have an increased risk of the following: Lung cancer; Lung disease; Heart attack; Heart disease; Hypertension; Stroke; Oral cancer; Bladder cancer; Pancreatic cancer; Cervical can...
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Use of cigarettes and other tobacco products to engage in a habit that almost always leads to addiction. Every day 3,000 young people light up their first cigarette; every year a million teenagers become regular smokers. Adolescent smoking has ris...
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Smoking is the inhalation of the smoke of burning tobacco encased in cigarettes, pipes, and cigars. Casual smoking is the act of smoking only occasionally, usually in a social situation or to relieve stress . A smoking habit is a physical addictio...
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Smoking is the inhalation of the smoke of burning tobacco that is used mostly in three forms: cigarettes, pipes, and cigars.
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Smoking is an important and preventable cause of death and illness. However, as more money has been spent on smoking cessation programs, the incidence of cigarette smoking has risen. In 2002, 48 percent of men and 12 percent of women in the world ...
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Starting at what is commonly called middle age, operations of the human body begin to be more vulnerable to daily wear and tear; there is a general decline in physical, and possibly mental, functioning. In the Western countries, the length of life...
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Aging is the process of growing older, a process that includes physical changes and, sometimes, mental changes. "The aged" refers to elderly people, those who have reached an advanced age.
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Starting at what is commonly called middle age, operations of the human body become more vulnerable to daily wear and tear. There is a general decline in physical, and possibly mental, functioning. In the Western countries, the length of life ofte...
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This term is used by demographers when referring to an increase over time in the proportion of older persons in the population. It does not necessarily imply an increase in life expectancy, that "people are living longer that they used to," or tha...
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Ethyl alcohol, or ethanol, is the most commonly used drug in the world. Pharmacologically, alcohol is classified as a central nervous system depressant. Like other depressants, in small doses alcohol slows heart rate and respiration, decreases mus...
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Alcoholism is defined as alcohol seeking and consumption behavior that is harmful. Long-term and uncontrollable harmful consumption can cause alcohol-related disorders that include: antisocial personality disorder , mood disorders (bipolar and maj...
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Pneumonia is a lung infection that can be caused by many different germs, including bacteria, viruses, and fungi. This article discusses describes pneumonia that occurs in a person whose ability to fight infection is greatly reduced because their ...
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End-stage kidney disease is the complete, or almost complete failure of the kidneys to function. The kidneys can no longer remove wastes, concentrate urine, and regulate many other important body functions.
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Cancer is not just one disease, but a large group of almost 100 diseases. It is a genetic disease, with two main characteristics of uncontrolled growth of the cells in the human body and the ability of those cells to migrate from the original site...
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Cancer is the uncontrolled growth of abnormal cells in the body. Cancerous cells are also called malignant cells.
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Cancer is the end product of a multistep process (carcinogenesis) that occurs over many years. The term "cancer" actually refers to numerous distinct diseases characterized by abnormal cell growth and differentiation. Cancers are categorized by th...
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A group of diseases characterized by uncontrollable cell growth. Cancer is a family of diseases in which cells replicate at an extremely rapid pace. A cancerous, or malignant, tumor begins its growth at a primary site, damaging surrounding tissue ...
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INCLUSION CRITERIA A preliminary list of cancers and related topics was compiled from a wide variety of sources, including professional medical guides and textbooks, as well as consumer guides and encyclopedias. The advisory board, made up of medi...
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Cancer is not just one disease, but a large group of diseases characterized by uncontrolled and abnormal growth of the cells in the human body and the ability of these cells to spread to distant sites (metastasis). If the spread is not controlled,...
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The Surveillance, Epidemiology, and End Results (SEER) Program of the National Cancer Institute is the most authoritative source of information on cancer incidence and survival in the United States. Established in 1973, SEER originally provided ca...
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Cancer is a group of diseases characterized by uncontrolled growth of tissue cells in the body and the invasion by these cells into nearby tissue and migration to distant sites.
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Unfortunately, man must suffer disease. Some diseases are totally reversible and can be effectively treated. Moreover, some diseases with proper treatment have been virtually annihilated, such as polio, rheumatic fever, smallpox, and, to some exte...
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Cancer is not just one disease, but a large group of diseases characterized by uncontrolled and abnormal growth of the cells in the human body and the ability of these cells to spread to distant sites (metastasis). If the spread is not controlled,...
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Cancer is not just one disease, but a large group of almost one hundred diseases. Its two main characteristics are uncontrolled growth of the cells in the human body and the ability of these cells to migrate from the original site and spread to di...
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Cancer is characterized by uncontrolled growth of cells in the body and the ability of these malignant cells to spread (metastasize) to distant sites within the body. If the spread is not controlled, cancer can result in death. Cancer is not just ...
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Cancer is a disease characterized by the uncontrolled growth and spread of abnormal cells. Around the world, over 10 million cancer cases occur annually. Half of all men and one-third of all women in the United States will develop some form of can...
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A continuous process in which multiple alterations occur in genes that control cell division and differentiation that leads to cancer—the uncontrolled division and proliferation of cells. These genetic alterations are referred to as mutations, whi...
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Increasing the humidity in your home helps eliminate the dry air that can irritate and inflame the passages in the nose and throat. Humidified air can relieve the discomfort of colds and the flu and can be particularly helpful for people who have ...
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