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1. • • A viral fever is caused by infection with a virus. Viruses are very small infectious agents. They infect and multiply within the cells of your body. A fever is your body’s way of fighting off a virus. Many viruses are sensitive to shifts in temperature, so a sudden increase in your body temperature makes you less hospitable to viruses.
     www.healthline.com/health/viral-fever

     Viral Fever: Symptoms, Causes, Diagnosis, Treatment, and Warning

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

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   May 7, 2022 · Fevers below 104 F (40 C) associated with common viral infections, such as the flu, may help the immune system fight disease and are generally not harmful. Fever or elevated body temperature might be caused by: A viral infection; A bacterial infection; Heat exhaustion

3. my.clevelandclinic.org › health › diseasesViral Infection: Causes, Symptoms, Tests & Treatment

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   Nov 23, 2022 · Go to the nearest ER or seek immediate medical attention if you have signs of a serious infection, including: High fever (103 degrees Fahrenheit/39.4 degrees Celsius). Difficulty breathing.

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5. www.medicalnewstoday.com › articles › 324645Viral fever: Symptoms, causes, and diagnosis - Medical News Today

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   Mar 7, 2019 · A viral fever is a higher-than-average body temperature that a virus causes. Often, a person will experience symptoms that may include a runny nose, coughing, nausea, fatigue, and body...

   • Author: Rachel Nall, MSN, CRNA

6. 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.

7. www.verywellhealth.com › fever-8685009Fever: Temperature Range, What’s Serious, Breaking It

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   Aug 21, 2024 · Fever is a response to something in the body, usually a viral infection like the flu or COVID-19. Bacterial infections, such as urinary tract or skin infections, can also trigger fevers, as can noninfectious causes like autoimmune diseases or drug reactions.

   • Author: Colleen Doherty, MD

8. www.healthline.com › health › viral-feverViral Fever: Symptoms, Causes, Diagnosis, Treatment, and Warning

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   Jan 24, 2024 · A viral fever is a high body temperature that accompanies many viral infections. We’ll go over common symptoms of viral fevers and what causes them.

9. People also ask

   Can a fever be a sign of a virus?

   • While not every person experiences a fever when they have a virus, a fever can be a sign that the body is trying to fight off the infection. Most viral illnesses will improve with time and supportive treatments such as cold compresses and over-the-counter (OTC) medications.

   Viral fever: Symptoms, causes, and diagnosis - Medical News Today

   www.medicalnewstoday.com/articles/324645

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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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   What is a viral fever?

   • A viral fever is a higher-than-average body temperature that a virus causes. Often, a person will experience symptoms that may include a runny nose, coughing, nausea, fatigue, and body aches. While not every person experiences a fever when they have a virus, a fever can be a sign that the body is trying to fight off the infection.

   Viral fever: Symptoms, causes, and diagnosis - Medical News Today

   www.medicalnewstoday.com/articles/324645

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   Can a bacterial infection cause a viral fever?

   • Both viral and bacterial infections often cause similar symptoms. To diagnose a viral fever, a doctor will likely start by ruling out a bacterial infection. They can do this by considering your symptoms and medical history, as well as taking any samples to test for bacteria.

   Viral Fever: Symptoms, Causes, Diagnosis, Treatment, and Warning

   www.healthline.com/health/viral-fever

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10. www.healthlinkbc.ca › health-topics › fever-orFever or Chills, Age 12 and Older - HealthLink BC

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    Overview. Check Your Symptoms. Self-Care. Preparing For Your Appointment. Related Information. Overview. A fever is the body's normal and healthy reaction to infection and other illnesses, both minor and serious. It helps the body fight infection. A fever is a symptom, not a disease.