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1. • Isn’t an illness

     • A fever itself isn’t an illness. Rather, it’s a symptom of a wide range of health conditions. When your body temperature rises a few degrees above normal, it can be a sign that your immune system has been activated, often to fight an infection. It can also be a side effect of some medications and vaccinations.
     my.clevelandclinic.org/health/symptoms/10880-fever

     Fever Symptoms & Causes: What Is Considered a Fever?

2. www.health.harvard.edu › treating-fever-in-adultsFever in adults: when to worry - Harvard Health

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   May 22, 2023 · When to worry about fever. If you have a fever over 104°F (40°C), you should call your doctor. Seek medical help right away if you have a fever along with any of these symptoms: seizure; loss of consciousness; confusion; stiff neck; trouble breathing; severe pain anywhere in the body; swelling or inflammation of any part of the body

   • Email: hhp_info@health.harvard.edu

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

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   A fever is when your body temperature is higher than your normal average temp. Most providers say a fever is either 100.0 F (37.8 C) or 100.4 F (38 C). When you have a fever, it’s your body’s normal response to fighting an infection or illness. Fevers usually aren’t a serious concern.

4. www.mayoclinic.org › diseases-conditions › feverFever - Symptoms and causes - Mayo Clinic

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   May 7, 2022 · 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.

5. www.webmd.com › covid › what-is-a-feverFever Symptoms & Causes: What Is Considered a Fever? - WebMD

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   Jun 20, 2024 · A fever is when your body temperature is higher than usual, often due to an infection or illness. Doctors generally consider a fever to be an oral temperature of 100 F (37.8 C) or higher.

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

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   Nov 15, 2023 · A fever can make you uncomfortable, but it's generally not cause for concern. You can often manage a fever at home, but in some cases you should call your doctor. Fever in babies: When...

7. www.medicalnewstoday.com › articles › 168266Fever: Symptoms, treatments, types, and causes

   www.medicalnewstoday.com › articles › 168266

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   Jan 2, 2024 · Symptoms. A fever is a common sign of an infection. When someone has a fever, they may also: shiver and feel cold when nobody else does. sweat. have a low appetite. show signs of dehydration....

8. People also ask

   What does it mean if you have a fever?

   • A fever is when your body temperature is higher than your normal average temp. Most providers say a fever is either 100.0 F (37.8 C) or 100.4 F (38 C). When you have a fever, it’s your body’s normal response to fighting an infection or illness. Fevers usually aren’t a serious concern. They typically go away when the infection passes.

   Fever Symptoms & Causes: What Is Considered a Fever? - Cleveland Cli…

   my.clevelandclinic.org/health/symptoms/10880-fever

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   Can you get sick if you have a fever?

   • Better thermometers. We may have more accurate thermometers than people did a century ago. Despite the new research, doctors generally don’t consider you to have a fever until your temperature is at or above 100 F. But you can be sick if it’s lower than that.

   Fever Symptoms & Causes: What Is Considered a Fever? - WebMD

   www.webmd.com/covid/what-is-a-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 and causes - Mayo Clinic

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

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   Should I Worry If I have a fever?

   • If you have a chronic condition or have been treated for a serious illness, let your doctor know if you have any kind of fever. A fever in adults is usually not something to worry about, but if the fever is very high or lasts for longer than 3 days, it could be the cause of a more serious illness.

   Fever in Adults: Characteristics, Types, and When It's Serious - Healthline

   www.healthline.com/health/cold-flu/fever-in-adults

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9. www.healthline.com › health › cold-fluFever in Adults: Characteristics, Types, and When It's Serious

   www.healthline.com › health › cold-flu

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   Sep 17, 2019 · Characteristics. Types. When it's serious. Causes. Treatments. When to go to the ER. Takeaway. You may need to get plenty of rest and drink fluids to help your body heal. But if you have a high or...