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  1. 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.

  2. 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. It's usually a sign your...

  3. www.webmd.com › covid › what-is-a-feverWhat Is a Fever? - WebMD

    Dec 24, 2022 · What Is a Fever? Medically Reviewed by Dan Brennan, MD on December 24, 2022. Written by Hallie Levine. The Myth of 98.6. How to Take Your Temperature. When to Call a Doctor. 4 min read. You...

  4. Normal body temperature ranges from 97.5°F to 98.9°F (36.4°C to 37.2°C). It tends to be lower in the morning and higher in the evening. Most healthcare providers consider a fever to be 100.4°F (38°C) or higher. High fevers may bring on seizures or confusion in children.

  5. May 26, 2023 · A fever is when your body temperature is higher than normal. The average body temperature is around 98.6°F (37°C). Your average body temperature may be higher or lower than that. It can also...

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