37.5°C and 38.3°C (99.5°F and 100.9°F)
Most people think of a normal body temperature as an oral temperature of 98.6°F (37°C) . This is an average of normal body temperatures. Your temperature may actually be 1°F (0.6°C) or more above or below 98.6°F (37°C) . Body temperature is a measure of the body's ability to generate and get rid of heat. Fever, also known as pyrexia and febrile response, is defined as having a temperature above the normal range due to an increase in the body's temperature set-point. There is not a single agreed upon upper limit for normal temperature with sources using values between 37.5 and 38.3 °C (99.5 and 100.9 °F). The increase in set-point triggers increased muscle contraction and causes a feeling of cold. This results in greater heat production and efforts to conserve heat. Fever is one of the most common medical signs. It is part of about 30% of healthcare visits by children and occurs in up to 75% of adults who are seriously sick. While fever is a useful defense mechanism, treating fever does not appear to worsen outcomes. This temperature is however, the average body temperature and the overall normal temperature varies from a minimum of 97.7° Fahrenheit (36.5° Celsius) to a maximum of almost 99.5° Fahrenheit (37.5° Celsius). Any temperature above or below this range is abnormal.  1 A normal temperature range for a child is usually up to 38°C. 2  Fever is usually a sign of infection in the body. 3  Fever is often caused by a virus and sometimes by bacteria. 1 Fever is when the temperature of the body rises to above 38°C. 2  A normal temperature range for a child is usually up to 38°C. 3  Fever is usually a sign of infection in the body The body is very good at keeping its temperature within a narrow, safe range in spite of large variations in temperatures outside the body. When you are too hot, the blood vessels in your skin expand (dilate) to carry the excess heat to your skin's surface. Body temperature is a measure of the body's ability to generate and get rid of heat. Fever in children. 1  Fever is when the temperature of the body rises to above 38°C. 2  A normal temperature range for a child is usually up to 38°C. 3  Fever is usually a sign of infection in the body. 4  Fever is often caused by a virus and sometimes by bacteria. 1 Fever is when the temperature of the body rises to above 38°C. 2  A normal temperature range for a child is usually up to 38°C. 3  Fever is usually a sign of infection in the body Fever is considered a temperature above 100.4 degrees F (38 degrees C). A feverish sensation, however, may occur when the body temperature is above the average normal of 98.6 degrees F. (37 degrees C). Fever is part of the body's own disease-fighting arsenal. Rising body temperatures apparently are capable of killing off many disease-producing organisms. A fever (also termed pyrexia) is a higher-than-normal body temperature. It is a symptom caused by a wide variety of illnesses. Fevers may occur in anyone at any age; however, this article is specifically addressing fever in adults. Every one of us has experienced the wave of chills and exhaustion that a fever causes. Consequently, an accurate measurement of body temperature (best is rectal core temperature) of 100.4 F (38 C) or above is considered to be a fever.. A newer option includes a temperature-sensitive infrared device that measures the temperature in the skin by simply rubbing the sensor on the body. For example, a horse is said to have a fever above 7002311483333333333♠101 °F (7002311450000000000♠38.3 °C). In species that allow the body to have a wide range of normal temperatures, such as camels, it is sometimes difficult to determine a febrile stage. Fever is one of the most common medical signs. It is part of about 30% of healthcare visits by children and occurs in up to 75% of adults who are seriously sick. While fever is a useful defense mechanism, treating fever does not appear to worsen outcomes.
http://www.webmd.com/first-aid/body-temperature https://en.wikipedia.org/wiki/Fever http://drsircus.com/medicine/low-body-temperature-symptoms-causes-treat/ http://www.rch.org.au/kidsinfo/fact_sheets/Fever_in_children/ http://www.webmd.com/first-aid/body-temperature http://www.rch.org.au/kidsinfo/fact_sheets/Fever_in_children/ http://www.medicinenet.com/fever/symptoms.htm http://www.emedicinehealth.com/fever_in_adults/article_em.htm https://en.wikipedia.org/wiki/Fever
what is the range for a fever