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There are three basic patterns of polio infection: subclinical infections, nonparalytic, and paralytic. Approximately 95% of infections are subclinical infections, which may not have symptoms.
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Poliovirus can be spread by direct exposure to an infected individual, and more rarely, by eating foods contaminated with waste products from the intestines (feces) and/or droplets of moisture (saliva) from an infected person. Thus, the major rout...
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Poliomyelitis originates with a viral infection. Poliovirus is a member of a group of viruses designated as enteroviruses. The viruses contain ribonucleic acid (RNA) as their genetic material. More specifically, the various polioviruses belong in ...
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Poliovirus can be spread by direct exposure to an infected individual, and more rarely, by eating foods contaminated with waste products from the intestines (feces) and/or droplets of moisture (saliva) from an infected person. Thus, the major rout...
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Pain is a universal human experience. The International Association for the Study of Pain (IASP) defines pain as "an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage...
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Pain, medically termed "nociception," is a response to noxious stimuli that is conveyed to the brain by sensory neurons . The discomfort signals actual or impending injury to the body. However, pain is more than a sensation, or the physical awaren...
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Pain is an unpleasant feeling that is conveyed to the brain by sensory neurons. The discomfort signals actual or potential injury to the body. However, pain is more than a sensation, or the physical awareness of pain; it also includes perception, ...
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Pain is an unpleasant feeling that is conveyed to the brain by sensory neurons. The discomfort signals actual or potential injury to the body. However, pain is more than a sensation, or the physical awareness of pain; it also includes perception, ...
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Pain is an unpleasant feeling that is conveyed to the brain by nerves in the body.
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Being tired is the familiar aftermath of physical exertion, prolonged labor or lack of sleep. When does being tired become a symptom of a condition? Fatigue, malaise, lassitude, exhaustion are all subtle variations of the same subjective feelings of not having enough energy to meet the demands of one's life.
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Joint pain can affect one or more joints. See also: Arthritis (inflammation of joints; Bursitis; Muscle pain.
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True muscle weakness means that full effort does not produce a normal muscle contraction or movement. A voluntary muscle contraction is generated when the brain sends a signal through the spinal cord and nerves to a muscle.
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Weakness is a reduction in the strength of one or more muscles.
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Neck pain may begin in any of the structures in the neck. These include muscles and nerves as well as spinal vertebrae and the cushioning disks in between. Neck pain may also come from regions near the neck, like the shoulder, jaw, head, and upper...
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Neck pain is a nonspecific symptom of discomfort that has a number of possible causes. Depending on the cause, neck pain may be experienced as limited to the neck itself (localized), or as radiating to the shoulders and upper arm. The patient may ...
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Physical therapy for back and neck pain is the treatment of this pain using professionally accepted techniques and procedures carried out by a physical therapist.
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Leg pain is a common symptom and complaint. For more specific information, see: Foot pain; Knee pain; Joint pain; Hip pain; Muscle pain; Shin splints.
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Muscle atrophy is the wasting or loss of muscle tissue.
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Muscle stiffness is feeling of tension and contraction in the muscles, that may limit normal range of motion. Sometimes muscles feel stiff after periods of vigorous use, for example athletic activities, physical labor or weight lifting.
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Spasticity is stiff or rigid muscles with exaggerated, deep tendon reflexes (for example, a knee-jerk reflex. The condition can interfere with walking, movement, or speech. See also: Muscle cramps
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Spasticity is a form of muscle overactivity. A spastic muscle is one in which a muscle resists being stretched out, and the resistance to stretch is greater the faster the muscle is moved. Spasticity is often used as an umbrella term for other for...
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Spasticity is an abnormal increase in muscle tone. It may be associated with involuntary muscle spasms , sustained muscle contractions (dystonia), and exaggerated deep tendon reflexes that make movement difficult or uncontrollable. Although it mos...
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Muscle aches and pains are common and can involve more than one muscle. Muscle pain also can involve ligaments, tendons, and fascia, the soft tissues that connect muscles, bones, and organs. See also: Muscle cramps; Joint pain.
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Fatigue is a feeling of weariness, tiredness, or lack of energy.
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Fatigue is physical and/or mental exhaustion that can be triggered by stress , medication, overwork, or mental and physical illness or disease.
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Fatigue may be defined as a subjective state in which one feels tired or exhausted, and in which the capacity for normal work or activity is reduced. There is, however, no commonly accepted definition of fatigue when it is considered in the contex...
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Fatigue may be defined as a subjective state in which one feels tired or exhausted, and in which the capacity for normal work or activity is reduced. There is, however, no commonly accepted definition of fatigue when it is considered in the contex...
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Fatigue is physical and/or mental exhaustion that can be triggered by stress , medication, overwork, or mental and physical illness or disease.
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Fatigue is a feeling of exhaustion or loss of strength. The duration of fatigue for a patient with cancer has been found to last from one to two times the length of time between diagnosis and completion of treatment, so it is common for fatigue to...
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Fever is the temporary increase in the body's temperature, in response to some disease or illness. A child has a fever when their temperature is at or above one of these levels: 100.4 F (38 C) measured in the bottom (rectally; 99.5 F(37.5 C) measu...
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A fever is any body temperature elevation over 100.4°F (38°C).
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Fever is defined as an abnormally high body temperature or a regulated rise to a new set point of body temperature. While a body temperature above 100°F(37.8°C) is considered to be a fever by some clinicians, a significant fever is usually defined...
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A fever is any body temperature elevation over 100°F (37.8°C).
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An elevated body temperature. While the standard for normal body temperature is 98.6°F (37°C), normal body temperatures actually fluctuate within a range of one to two degrees, making it impossible to formulate a precise definition of fever based ...
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Normal body temperature varies somewhat from one individual to another but displays a general range and pattern around the "normal" temperature of 98.6°F. Early morning body temperature may be as low as 97°F, and as high as 99.3°F in the afternoon...
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Hyperthermia involves raising the body's core temperature as a means of eradicating tumors. The treatment simulates fever . Some therapies actually bring on fever through the introduction of fever-causing organisms, while others raise body tempera...
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Hyperthermia is the use of therapeutic heat to treat various cancers on and inside the body.
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A headache is pain or discomfort in the head, scalp, or neck. Serious causes of headaches are extremely rare. Most people with headaches can feel much better by making lifestyle changes, learning ways to relax, and occasionally by taking medicatio...
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A headache is a pain in the head and neck region that may be either a disorder in its own right or a symptom HEADACHE THERAPIES Description Type Acupressure Press pointer fingers beneath cheekbones and parallel to pupils (Stomach 3) for one minute...
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A headache involves pain in the head which can arise from many disorders or may be a disorder in and of itself.
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A headache involves pain in the head that can arise from many disorders or may be a disorder in and of itself.
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Headache is a pain in the head and neck region that may be either a disorder in its own right or a symptom of an underlying medical condition or disease. The medical term for headache is cephalalgia. Headaches are one of the most common and univer...
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Back pain may occur in the upper, middle, or lower back; it is most often experienced in the lower back. It may originate from the bones and ligaments forming the spine, the muscles and tendons supporting the back, the nerves that exit the spinal ...
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Nausea is the sensation of having an urge to vomit. Vomiting is forcing the contents of the stomach up through the esophagus and out of the mouth.
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Nausea is the sensation of having a queasy stomach or being about to vomit. Vomiting , or emesis, is the expelling of undigested food through the mouth.
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Gas, also called flatus or flatulence, is air in the intestine that is passed through the rectum. Air that is passed from the digestive tract through the mouth is called belching.
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Gas, or flatus, is produced when naturally occurring bacteria in the gastrointestinal tract begin to break down, or digest, food. When an excess of air builds up in the tract from swallowing air or a disorder that prevents digestion, it is release...
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Diarrhea is loose, watery, and frequent stool. Diarrhea is considered chronic (long-term) when you have had loose or frequent stools for more than 4 weeks.
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To most persons, diarrhea means an increased frequency or softer consistency of bowel movements; however, the medical definition is more exact than this. Diarrhea best correlates with an increase in stool weight; stool weights above 300 g per day ...
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Rashes involve changes in the color or texture of your skin.
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The popular term for a group of spots or red, inflamed skin that is usually a symptom of an underlying condition or disorder. Often temporary, a rash is only rarely a sign of a serious problem.
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The popular term for a group of spots or red, inflamed skin that is usually a symptom of an underlying condition or disorder. Often temporary, a rash is only rarely a sign of a serious problem.
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Rash is a popular term for a group of spots or an area of red, inflamed skin. A rash is usually a symptom of an underlying condition or disorder. Often only temporary, a rash is rarely a sign of a serious problem.
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Vomiting is the forceful discharge of stomach contents through the mouth.
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Constipation refers to infrequent or hard stools, or difficulty passing stools. Constipation may involve pain during the passage of a bowel movement, inability to pass a bowel movement after straining or pushing for more than 10 minutes, or no bow...
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Constipation is an acute or chronic condition in which bowel movements occur less often than usual or consist of hard, dry stools that are painful or difficult to pass. Bowel habits vary, but an adult who has not had a bowel movement in three days...
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Constipation is an acute or chronic condition in which bowel movements occur less often than usual or consist of hard, dry stools that are painful or difficult to pass. Although constipation is a relative term, with normal patterns of bowel moveme...
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Difficulty with producing a bowel movement, or infrequent bowel movements. Constipation, a condition that can affect the human digestive system at any stage of life, is rarely serious or chronic. Because bowel functions vary from individual to ind...
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Constipation is an acute or chronic condition in which bowel movements occur less often than usual or consist of hard, dry stools that are painful or difficult to pass. Bowel habits vary, but an adult who has not had a bowel movement in three days...
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A sore throat is discomfort, pain, or scratchiness in the throat. A sore throat often makes it painful to swallow.
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Sore throat is an upper respiratory infection that may be caused by inflammation of the pharynx, larynx, or tonsils. Thus, it is a symptom of many conditions, but most often is associated with common cold or influenza . Sore throat may be caused b...
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Sore throat, also called pharyngitis, is a painful inflammation of the mucous membranes lining the pharynx. It is a symptom of many conditions, but most often is associated with colds or influenza . Sore throat may be caused by either viral or bac...
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Sore throat is a painful inflammation of the mucous membranes lining the pharynx.
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Sore throat, also called pharyngitis, is a painful inflammation of the back of the throat. It is a symptom of many conditions, but most often is associated with colds or influenza . Sore throat may be caused by either viral or bacterial infections...
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Malaise is a generalized feeling of discomfort, illness, or lack of well-being.
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Breathing difficulty involves a sensation of difficult or uncomfortable breathing or a feeling of not getting enough air. See also: Difficulty breathing - first aid
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Shortness of breath, or dyspnea, is a feeling of difficult or labored breathing that is out of proportion to the patient's level of physical activity. It is a symptom of a variety of different diseases or disorders and may be either acute or chronic.
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Irritability is an excessive response to stimuli.
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A charley horse is the common name for a muscle spasm, especially in the leg. Muscle spasms can occur in any muscle in the body. When a muscle is in spasm, it contracts without your control and does not relax.
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Muscle spasms and cramps are spontaneous, often painful muscle contractions.
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Choking is when someone can't breathe because food, a toy, or other object is blocking the airway (throat or windpipe.
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Choking is a condition caused by inhalation of a foreign object that partially or fully blocks the airway.
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Blockage of the throat or windpipe by an object. Choking is a major cause of death for children under three, and is a hazard for older children as well. Young children explore the world with their mouths, and they will naturally put in their mouth...
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Choking is the inability to breathe because the trachea is blocked, constricted, or swollen shut.
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Drooling is saliva flowing outside the mouth.
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Abdominal bloating is a condition in which the abdomen (belly) feels full and tight.
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Muscle rigidity is an alteration of muscle tone in which the muscles are in an involuntary state of continual tension. Muscle rigidity can be a manifestation of neurological damage (basal ganglia diseases) or a side effect of certain medications.
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Difficulty starting or maintaining a urinary stream is called urinary hesitancy.
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Dysphagia is a disorder of swallowing.
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Bowel movements normally occur at approximately the same time each day. The feces (stool) itself should be soft enough that it can be passed without straining.
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Sometimes a person feels hot to touch due to illness or environmental situation that causes elevated core temperature. A compounding factor can be dehydration (lack of fluids.
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Muscle twitches are fine movements of a small area of muscle.
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Abdominal distention, gaseous often results from overeating or from swallowing air, but can be a sign of a more serious medical condition, such as bowel obstruction. Eating certain foods such as legumes (beans) can cause abdominal distention due to intestinal gas.
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