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May 22, 2023 · Fever means a body temperature of 100.4° F (38°C) or higher. High fever in adults. While any temperature above your normal temperature range is considered a fever, there are different levels of fever severity: Low-grade: 99.1 to 100.4 F (37.3 to 38.0 C) Moderate-grade: 100.6 to 102.2 F (38.1 to 39.0 C) High-grade: 102.4 to 105.8 F (39.1 to 41 C).
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May 7, 2022 · The average temperature has traditionally been defined as 98.6 F (37 C). A temperature taken using a mouth thermometer (oral temperature) that's 100 F (37.8 C) or higher is generally considered to be a fever. Depending on what's causing a fever, other fever signs and symptoms may include: Sweating. Chills and shivering.
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...
- Mononucleosis. Symptoms. Fever. Sore throat. Fatigue. Swollen lymph nodes. Mononucleosis, or mono, is a highly contagious viral infection typically caused by the Epstein-Barr virus.
- Influenza (flu) Symptoms: Fever. Cough. Congestion. Headache. Body aches. Nausea, vomiting, diarrhea (especially in young children) The flu is an infection of the respiratory tract (e.g.,your lungs, nose, and mouth) caused by the influenza virus.
- Pneumonia. Symptoms. Fever. Cough (which may also produce mucus/phlegm) Trouble breathing or increased breathing rate. Fatigue. Chest pain. Nausea, vomiting, loss of appetite, and diarrhea (especially in younger children)
- Common cold. Symptoms. Runny nose. Cough and congestion. Low fever. Fatigue. Body aches (usually mild) A common cold is a viral infection of the respiratory tract (usually just your nose and mouth).
Jul 29, 2021 · Running a fever is most commonly an indication that your body’s trying to fight an infection. While uncomfortable, a fever is an important mechanism for your body to fight off viruses and...
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Apr 26, 2022 · Persistent fever can mean you have an infection, including COVID-19. If you have a fever and other symptoms, such as cough and fatigue, contact your health care provider right away for medical advice.
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Nov 29, 2021 · Fever is an elevated body temperature which means your temperature is 100.4 degree F or higher. A fever is the body’s way of fighting an infection by naturally raising your body’s temperature to “kill the germ.” The medical community likes to say that fever is a “good thing,” in most cases.
