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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. For infants, however, even a low fever may mean there's a serious infection.
A fever is not an illness but a symptom or sign of an illness or infection in your body. However, a fever is commonly accompanied by other symptoms including: Sweats or chills You might experience sweats or “chills” - feeling cold while shivering. These symptoms might be a sign that you have a fever. Headache
May 31, 2023 · A fever has many causes and can be a symptom of almost any illness. Common conditions that cause fever include: Bacterial infections. Viral infections such as influenza or COVID-19. Gastrointestinal (GI) infections. Urinary tract infections. Skin infections. You may also develop a fever due to: A reaction to certain medications. Vaccinations.
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. Normal body temperature varies by. Site of measurement
- Larry M. Bush
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.
- Colleen Doherty, MD
[7] [54] A neutropenic fever, also called febrile neutropenia, is a fever in the absence of normal immune system function. [55] Because of the lack of infection-fighting neutrophils, a bacterial infection can spread rapidly; this fever is, therefore, usually considered to require urgent medical attention. [56]
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Sep 8, 2024 · Most fevers are caused by infections or other illnesses. Viral infections are the commonest causes of a fever. The high body temperature makes it more difficult for the germs (bacteria or viruses) which cause infections to survive. Fever caused by infections. Common conditions that can cause fevers include:
