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The normal temperature inside your childâs body is usually around 37 degrees Celsius. Your child has a mild fever if their temperature is higher than 38 degrees Celsius. A high fever usually means more than 39 degrees Celsius.
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. 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.