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   What causes a fever?

   • Infection is a common cause of fever, but other conditions can also bring the heat. Fever is one of the body's most effective ways of fighting infection. It is part of your body's defense against infection-causing germs. You get a fever most often when your body is trying to kill infectious invaders such as viruses or bacteria.

   Fever in adults: when to worry - Harvard Health

   www.health.harvard.edu/diseases-and-conditions/treating-fever-in-adults

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   What causes a high fever a day?

   • Sepsis: This occurs when the body has an extreme reaction to an infection. This is a daily fever that is always higher than normal but may fluctuate as much as 3.6°F (2°C) throughout the day. Common causes may include: Infective endocarditis: This is an infection of the endocardium, which is the membrane that lines the inside of the heart.

   Fever in adults: Symptoms, treatment, and when to seek help

   www.medicalnewstoday.com/articles/fever-in-adults

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   Why do you get a fever if you have a high temperature?

   • It is part of your body's defense against infection-causing germs. You get a fever most often when your body is trying to kill infectious invaders such as viruses or bacteria. A higher body temperature helps the immune system respond more vigorously to the attack, and makes it harder for these microbes to survive.

   Fever in adults: when to worry - Harvard Health

   www.health.harvard.edu/diseases-and-conditions/treating-fever-in-adults

   See all results for this question

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 caused by an infection or other factors. Learn when to see a doctor, how to measure a fever, and what complications can occur in infants, children and adults.

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

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   May 22, 2023 · Fever is a common sign of infection or other conditions that affect the immune system. Learn how to measure fever, when to worry, and how to treat it at home.

   • Location: 4 Blackfan Circle, 4th Floor, Boston, 02115, MA
   • Email: hhp_info@health.harvard.edu

   • Phone: (877) 649-9457

4. 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 · A fever is a sign of infection or other illness in adults. Learn about the types, causes, and treatments of fever, and when to seek medical help.

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

   www.webmd.com › first-aid › fevers-causes-symptoms

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   Nov 15, 2023 · A fever is a sign of infection or other health conditions. Learn what causes fever, how to measure it, when to worry, and how to treat it.

6. www.medicalnewstoday.com › articles › fever-in-adultsFever in adults: Symptoms, treatment, and when to seek help

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   A fever is a sign of infection or inflammation in the body. Learn about the types, causes, and complications of fever in adults, and how to treat and prevent it.

7. www.mayoclinic.org › diseases-conditions › feverFever treatment: Quick guide to treating a fever - Mayo Clinic

   www.mayoclinic.org › diseases-conditions › fever

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   Feb 26, 2022 · By Mayo Clinic Staff. A fever is a common sign of illness, but that's not necessarily a bad thing. In fact, fevers seem to play a key role in fighting infections. So should you treat a fever or let the fever run its course? Here's help making the call.

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

   www.hopkinsmedicine.org › fever

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   Home Health Conditions and Diseases. Fever. What is a fever? A fever is a body temperature that is higher than normal. It usually means there is an abnormal process occurring in the body. Exercise, hot weather, and common childhood immunizations can also make body temperature rise. What causes a fever? A fever is not an illness by itself.