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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.
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:
May 22, 2023 · But "normal" body temperature varies from person to person. It also changes during the day, rising a bit after you eat or exercise. Body temperature is often higher in the afternoon than it is when you wake up in the morning. Fever means a body temperature of 100.4° F (38°C) or higher. High fever in adults
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Nov 15, 2023 · It’s also called a high temperature, hyperthermia, or pyrexia. It's usually a sign your immune system is working to fight some type of infection. Fever temperatures
May 4, 2018 · When both the high fever and the underlying cause are treated promptly, there's usually a good outcome. Hyperpyrexia, or a very high fever, can indicate an infection or some other serious condition.
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.
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Sep 17, 2019 · A fever is usually a sign that your immune system is busy fighting an infection or other illness. In babies and toddlers even a slight fever may be a sign of a serious illness. In adults a fever ...
