ailments are caused by an?
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Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease. Some infectious diseases can be passed from person to person.
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What Can Cause Chronic Ear Infections? There are multiple causes for recurring (chronic) ear infections, or recurring otitis media, ranging from allergies, sinusitis, ear injuries, and bacterial infections from colds or flu.
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Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful. But under certain conditions, some organisms may cause disease.
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Infections and viruses The flu, the common cold, and other viral or bacterial infections can cause body aches. When such infections occur, the immune system sends white blood cells to fight off the infection. This can result in inflammation, which can leave the muscles in the body feeling achy and stiff.
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['Infection.', 'Rheumatoid arthritis.', 'Rheumatic fever.', 'Vascular disease.', 'Inflammatory bowel disease.', 'Heart disease.', 'Kidney disease.', 'Certain cancers.']
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Strep infection may lead to inflammatory illnesses, including: Scarlet fever, a streptococcal infection characterized by a prominent rash. Inflammation of the kidney (poststreptococcal glomerulonephritis) Rheumatic fever, a serious inflammatory condition that can affect the heart, joints, nervous system and skin.
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An ear infection is caused by a bacterium or virus in the middle ear. This infection often results from another illness — cold, flu or allergy — that causes congestion and swelling of the nasal passages, throat and eustachian tubes.
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Possible causes of fever are: Fever, muscle aches, and dry cough are likely caused by a viral infection such as influenza (flu). Fever and a stuffed up head is likely due to another viral infection, the common cold. Fever with a cough that produces colored sputum may be pneumonia.
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Food poisoning can be caused by a variety of bugs, including viruses, bacteria and parasites, as well as toxins. If bacteria are the cause of the condition, the term bacterial gastroenteritis may be used. Sometimes the terms bacterial gastroenteritis and bacterial food poisoning are used interchangeably.
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['viral infections, such as infectious mononucleosis, mumps, and measles.', 'parasitic infections.', 'chronic inflammatory disease.', 'tuberculosis (TB), a chronic respiratory disease caused by a type of bacteria.']
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['Being hospitalized. ... ', 'Chronic disease. ... ', 'Smoking. ... ', 'Weakened or suppressed immune system.']
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In medicine, the etiology of an illness or condition refers to the frequent studies to determine one or more factors that come together to cause the illness. ... Without knowing the precise cause, Captain James Cook suspected scurvy was caused by the lack of vegetables in the diet.
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The pain caused by appendicitis or gallbladder disease may increase when you move or cough. Pain that increases with movement or coughing and does not appear to be caused by strained muscles is more likely to be a symptom of a serious problem.
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Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
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Some infections cause disease, which is any deviation from the normal function or structure of the host. Signs of a disease are objective and are measured. Symptoms of a disease are subjective and are reported by the patient. An acute disease is short in duration, whereas a chronic disease lasts for months or years.
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Mental illnesses may be caused by a reaction to environmental stresses, genetic factors, biochemical imbalances, or a combination of these. With proper care and treatment many individuals learn to cope or recover from a mental illness or emotional disorder.
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['Infection (bacterial, viral, other)', 'Cancer of the blood or lymphatic system.', 'An autoimmune disorder causing ongoing (chronic) inflammation.']