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Hemolytic anemia occurs when the bone marrow is unable to increase production to make up for the premature destruction of red blood cells. If the bone marrow is able to keep up with the early destruction, anemia does not occur (sometimes called co...
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Inherited hemolytic anemias involve conditions that interfere with normal red blood cell production. Disorders that affect the red blood cell membrane include hereditary spherocytosis, in which the normally disk-shaped red cells become spherical, ...
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Erythrocyte (red blood cell) formation takes place in the red bone marrow in an adult and in the liver, spleen, and bone marrow of the fetus. Their formation requires an adequate supply of iron, cobalt, copper, amino acids, and certain vitamins . ...
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Hemolysis is the breakdown of red blood cells. See also: Hemolytic anemia
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For common minor symptoms and illnesses, over-the-counter medicines are available. Always follow the manufacturer's directions and warnings when using these products. If you have any questions, consult with your doctor before starting a new over-t...
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The best way to stay healthy during travel is to prepare before you leave and take appropriate preventive measures while traveling. Different areas of the world have different diseases and require different precautions. Factors that contribute to ...
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An infection is a condition in which viruses, bacteria, fungi, or parasites enter the body and cause a state of disease. Such invaders are called pathogens. They damage cells of the body by adhering to and damaging the cell walls, releasing toxic ...
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Although the word meningitis suggests an inflammation of the meninges only, there is always some involvement of the most superficial parts of the brain that are contiguous to the meninges. Often there are also alterations in the flow of cerebrospinal fluid (CSF).
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Infection is the invasion and replication of microorganisms— viruses , bacteria , protozoa, or fungi —in body tissues.
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The phrase "filth diseases" was coined in 1858 by British physician Charles Murchison to describe a class of conditions, mostly caused by infectious pathogens, that were associated with squalid living conditions—the overcrowded, unsanitary, and ve...
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The tropics are usually defined as that part of the equatorial world bounded by the tropics of Cancer and Capricorn. Defining a tropical infectious disease is not as straightforward. Almost all infectious diseases can be found in the tropics; ther...
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The term "emerging infection," first widely used in the early 1990s, refers to newly identified and previously unknown infectious agents that cause public health problems either locally or internationally. Their impact, in terms of economic reperc...
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A communicable disease is an illness caused by a specific infectious agent or its toxic products. It arises through transmission of that agent or its products from an infected person, animal, or inanimate reservoir to a susceptible host, either di...
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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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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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