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   Is a fever an illness?

   • A fever is not an illness by itself. Rather it is a symptom that something is not right within the body. A fever does not tell you what is causing it, or even that a disease is present. It may be a bacterial or viral infection. Or, it could be a reaction from an allergy to food or medicine.

   Fever | Johns Hopkins Medicine

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   What does fever mean?

   • Fever refers to a body temperature of 100.4 °F (38°C) or more. Fever is a symptom of the body’s reaction to an underlying cause. These causes can include infection, inflammatory diseases, certain medications, blood clots, and cancer, among other factors.

   Fever: Temperatures, Symptoms, Causes, Treatment, and More - Health…

   www.healthgrades.com/right-care/symptoms-and-conditions/fever

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   Is a fever a sign of a serious infection?

   • A fever is a temporary rise in body temperature. It's one part of an overall response from the body's immune system. A fever is usually caused by an infection. For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern. For infants, however, even a low fever may mean there's a serious infection.

   Fever - Symptoms & causes - Mayo Clinic

   www.mayoclinic.org/diseases-conditions/fever/symptoms-causes/syc-20352759

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2. www.mayoclinic.org › diseases-conditions › feverFever - Symptoms & causes - Mayo Clinic

   www.mayoclinic.org › diseases-conditions › fever

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   May 7, 2022 · A fever is a temporary rise in body temperature. It's one part of an overall response from the body's immune system. A fever is usually caused by an infection. For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern.

3. my.clevelandclinic.org › health › symptomsFever Symptoms & Causes: What Is Considered a Fever?

   my.clevelandclinic.org › health › symptoms

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   A fever is when your body temperature rises higher than normal. A fever itself isn’t an illness. Rather, it’s a symptom for a wide range of health conditions.

4. www.webmd.com › first-aid › fevers-causes-symptomsFever: Causes, Symptoms, and Treatment - WebMD

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   Nov 15, 2023 · A fever is when you have a brief rise in body temperature that’s higher than your normal body temperature. It’s also called a high temperature, hyperthermia, or pyrexia.

5. www.hopkinsmedicine.org › feverFever | Johns Hopkins Medicine

   www.hopkinsmedicine.org › fever

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   A fever is not an illness by itself. Rather it is a symptom that something is not right within the body. A fever does not tell you what is causing it, or even that a disease is present. It may be a bacterial or viral infection. Or, it could be a reaction from an allergy to food or medicine.

6. www.healthline.com › health › feverFever: Causes, Treatment, and Prevention - Healthline

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   Fever is also known as hyperthermia, pyrexia, or elevated temperature. It describes a body temperature that’s higher than normal. Fever can affect children and adults.

7. www.msdmanuals.com › feverFever - Infectious Diseases - MSD Manual Professional Edition

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   Fever is an elevated body temperature that occurs when the body's thermostat (located in the hypothalamus) resets at a higher temperature, primarily in response to an infection. Elevated body temperature that is not caused by a resetting of the temperature set point is called hyperthermia.

8. www.healthgrades.com › feverFever: Temperatures, Symptoms, Causes, Treatment, and More

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   May 31, 2022 · Symptoms and Conditions. Everything You Need to Know About Fever. Overview. Signs and symptoms. Seeking medical help. Causes. Diagnosis. Treatment. At-home treatment. FAQ. Summary. Fever is an increase in your body’s temperature to a range that is above typical levels.