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Influenza
Influenza An acute viral infection involving the respiratory tract. It is marked by inflammation of the nasal mucosa, the pharynx, and conjunctiva, and by headache and severe, often generalized, myalgia. RELATED TERMS-------------------------------------- Acute 1. Of short course. 2. Severe, but of a short duration. Not chronic. Infection Anything that invades the body and reproduces. Infections can be bacteria, protozoa, fungi, or viruses. Bacteria and fungi are one celled creatures that cause many infections including strep throat, bladder infections, and some lung infections. Fungi cause “athlete’s foot” and thrush, an infection in the mouth. Protozoa are small organisms with many cells that can cause infections in the guts or in the lungs. Most healthy people do not get protozoal infections, but people with suppressed immune systems can. Viruses are not really organisms; they are tiny particles that can live only inside another cell. They reproduce by taking over a cell and causing that cell to make more virus particles, rather than doing what the cell is supposed to do. Viruses cause most colds and flu cases. Inflammation A reaction to an injury to the body - by infection, chemicals or physical agents. The symptoms can be - depending on the location of the injury- redness, swelling, heat and pain. The purpose of the inflammation is to dilute and destroy the agent causing the inflammation. To do this, the immune system starts a cascade of actions that causes active cells to gather at the affected location. It is these cells and fluids that cause the redness, swelling, heat and pain. Mucosa The membrane covering canals and cavities that open on the outside of the body, such as the gastrointestinal tract and the respiratory tract. Also called mucous membrane. Pharynx Space behind the mouth that serves as a passage for food from the mouth to the esophagus and for air from the nose and mouth to the larynx. Conjunctiva The membrane lining the eyelids and covering the eyeball. Headache Primary - includes tension (muscular contraction), vascular (migraine), and cluster headaches not caused by other underlying medical conditions. Secondary - includes headaches that result from other medical conditions. These may also be referred to as traction headaches or inflammatory headaches. Myalgia Muscle pain. SIMILAR TERMS-------------------------------------- Inflamase forte Inflamase forte is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): prednisolone sodium phosphate. Inflamase mild Inflamase mild is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): prednisolone sodium phosphate. Inflammation The nonspecific immune response that occurs in reaction to any type of bodily injury. It is a stereotyped response that is identical whether the injurious agent is a pathogenic organism, foreign body, ischemia, physical trauma, ionizing radiation, electrical energy or extremes of temperature. The reactions produced during inflammation and repair may be harmful (ie hypersensitivity reactions, the processes that lead to rheumatoid arthritis, and possibly microglial over activation in ALS). Inflammation A reaction to an injury to the body - by infection, chemicals or physical agents. The symptoms can be - depending on the location of the injury- redness, swelling, heat and pain. The purpose of the inflammation is to dilute and destroy the agent causing the inflammation. To do this, the immune system starts a cascade of actions that causes active cells to gather at the affected location. It is these cells and fluids that cause the redness, swelling, heat and pain. Inflammatory bowel disease (IBD) Long-lasting problems that cause irritation and ulcers in the GI tract - The most common disorders are ulcerative colitis and Crohn's disease. PREVIOUS AND NEXT TERMS-------------------------------------- Iris The colored part of the eye with a hole (pupil) in the center. It regulates the amount of light entering the eye – the dimmer the lighting the more light the iris lets into the eye by widening the pupil. Iritis An inflammation of the iris. Impotence An abnormal physical or psychological state in a male characterized by inability to copulate because of failure to have or maintain an erection. Indigestion Impaired digestion, especially after eating. Infertility The diminished or absent ability to conceive or produce an offspring while sterility is the complete inability to conceive or produce an offspring. Influenza Insomnia Disorders characterized by impairment of the ability to initiate or maintain sleep. This may occur as a primary disorder or in association with another medical or psychiatric condition. Ia "Immune response-associated" proteins, found on B cells and antigen-presenting cells of mice; an old term now replaced with MHC (major histocompatibility complex) class II molecules. Idiotype The combined antigenic determinants (idiotopes) found on antibodies of an individual that are directed at a particular antigen; such antigenic determinants are found only in the variable region. Immediate-type hypersensitivity Hypersensitivity tissue reaction occurring within minutes after the interaction of antigen and antibody. Immune adherence The adherence of particulate antigen coated with C3b to tissue having cells with C3b receptors. We thank you for using the Medical Glossary to search for Influenza. If you have a better definition for Influenza than the one presented here, please let us know by making use of the suggest a term option. This definition of Influenza may be disputed by other professionals. Our attempt is to provide easy definitions on Influenza and any other medical topic for the public at large.
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