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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. According to the Centers for Disease Control and Prevention, AIDS begins when a person with HIV infection has a CD4 cell count below 200. (CD4 is also called "T-cell", a type of immune cell.) AIDS is also defined by numerous opportunistic infections and cancers that occur in the presence of HIV infection.
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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.
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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) count below 200.
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A person with HIV can look and feel perfectly healthy. But that person can give HIV to others as soon as he or she is infected with the virus.
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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 initial HIV infection.
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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.
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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 confined to West Africa.
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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 anal, oral, and vaginal intercourse, both heterosexually and homosexually), through contact with blood (mainly via equipment used to inject illicit drugs and, rarely, via medical uses of blood), and perinatally (from mother to fetus or newborn during pregnancy, labor, and delivery, or after birth through breast-feeding). ORIGIN AND HISTORY HIV-1 and HIV-2 both appear to have been transmitted to humans from primates in Central and West Africa, probably to hunters or processors of carcasses of primates consumed as food (referred to as " bush meat " ).
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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, and to produce a vaccine to prevent its spread.
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The fluid that carries substances such as hormones, oxygen, and glucose to the tissues of the body and carries carbon dioxide away from the tissues as waste. Blood is the red-colored fluid that flows through the arteries and veins of the body.
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Cerebral palsy is a group of disorders characterized by loss of movement or loss of other nerve functions. These disorders are caused by injuries to the brain that occur during fetal development or near the time of birth.
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Cerebral palsy (CP) is the term used for a group of nonprogressive disorders of movement and posture caused by abnormal development of, or damage to, motor control centers of the brain. CP is caused by events before, during, or after birth.
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Cerebral palsy (CP) is the term used for a group of nonprogressive disorders of movement and posture caused by abnormal development of, or damage to, motor control centers of the brain. CP is caused by events before, during, or after birth.
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Cerebral palsy (CP) is the term used for a group of nonprogressive disorders of movement and posture caused by abnormal development of, or damage to, motor control centers of the brain or, in some cases, hypoxemia (insufficient oxygen in the blood ) during the birth process. CP is caused by events before, during, or after birth.
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Cerebral palsy (CP) is the term used for a group of nonprogressive disorders of movement and posture caused by abnormal development of, or damage to, motor control centers of the brain. CP is caused by events before, during, or after birth.
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Cerebral palsy is a term used to describe a group of chronic conditions affecting body movements and muscle coordination. It is caused by damage to one or more specific areas of the brain, usually occurring during fetal development or during infancy.
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Cerebral palsy (CP) is the term used for a group of nonprogressive disorders of movement and posture caused by abnormal development of, or damage to, motor control centers of the brain. CP is caused by events before, during, or after birth.
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Cerebral palsy (CP), or static encephalopathy, is the name for a collection of movement disorders caused by brain damage that occurs before, during, or shortly after birth. A person with CP is often also affected by other conditions caused by brain damage.
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A permanent motor disability caused by brain damage associated with birth. Cerebral palsy (CP) results from head injury after birth.
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Puberty is the period in life when the body changes rapidly and develops reproductive capability. Precocious puberty is premature development of body characteristics that normally occur during puberty. Puberty normally occurs between 13 and 15 years old in boys, and between 9 and 16 years old in girls. In girls, precocious puberty is when any of the following develop before 8 years of age: Breasts Armpit or pubic hair Mature external genitalia First menstruation Some evidence suggests that it may be normal if these changes occur as early as 7 years in Caucasian girls and 6 years in African American girls. In boys, precocious puberty is when any of the following develop before 9 years of age: Enlarged testes and penis Armpit or pubic hair Facial hair, usually first noted on the upper lip
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Precocious puberty is sexual development before the age of eight in girls, and age 10 in boys. Precocious puberty often begins before age eight in girls, triggering the development of breasts and hair under the arms and in the genital region.
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Sexual development before the age of eight in girls, and age 10 in boys. Not every child reaches puberty at the same time, but in most cases it ' s safe to predict that sexual development will begin at about age 11 in girls and 12 or 13 in boys.
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A feeding disorder of infancy or early childhood is the failure of a young child to obtain adequate nutrition, which is reflected by weight loss or a failure to gain weight appropriately for development.
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Conditions with a link to the individual ' s genetic make-up. Genetic disorders are conditions that can be traced to an individual ' s heredity.
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The traditional method used to study an inherited disease is to observe the pattern of its distribution in families through examination of a pedigree, the construction of which begins with the individual first known to have the disease. The pedigree pattern allows one to judge whether or not the distribution conforms to Mendelian principles of segregation and assortment, and thus represents single-factor inheritance.
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Variations within the DNA sequence of a particular gene affect its function and may cause or predispose an individual a particular disease. Alterations in the genome may increase the frequency of disorder and disease with entire populations.
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Variations within the DNA sequence of a particular gene affect its function, and may cause or predispose an individual a particular disease. Alterations in the genome may increase the frequency of disorder and disease with entire populations.
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Any unusual variation or abnormality in the shape, structure, and/or function of an organ, body part, or tissue is commonly referred to as a birth defect. However, congenital anomaly is the more accurate and preferred term, since birth defect can be misinterpreted to mean a defect produced by the birthing process.
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Malabsorption is difficulty in the digestion or absorption of nutrients from food substances.
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Malabsorption syndrome is an alteration in the ability of the intestine to absorb nutrients adequately into the bloodstream. Causes and symptoms Protein, fats , and carbohydrates (macronutrients) normally are absorbed in the small intestine ; the small bowel also absorbs about 80% of the 8.
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Malabsorption syndrome is an alteration in the ability of the intestine to absorb nutrients adequately into the bloodstream. Causes and symptoms Protein, fats, and carbohydrates (macronutrients) normally are absorbed in the small intestine; the small bowel also absorbs about 80% of the eight to ten liters of fluid ingested daily.
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People with low incomes, particularly those who live in poverty, face particular challenges in maintaining their health. They are more likely than those with higher incomes to become ill, and to die at younger ages.
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