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Fever - Symptoms & causes - Mayo Clinic
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 uncomfortabl...
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Fever treatment: Quick guide to treating a fever - Mayo Clinic
Feb 4, 2025 · A fever is a common sign of illness. But that doesn't always mean it's a bad thing. In fact, fevers may help fight infections. So should you treat a fever or let the fever run its course? Here's help kno...
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Typhoid fever - Symptoms & causes - Mayo Clinic
Typhoid fever is a life-threatening infection that affects millions of people each year. A certain strain of salmonella bacteria causes it. Typhoid fever is rare in places where few people carry the bacteria. It's als...
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7 signs and symptoms not to ignore
Feb 1, 2025 · Fever seems to play a key role in fighting infection. 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 ...
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Hay fever - Symptoms and causes - Mayo Clinic
Aug 13, 2024 · Overview Hay fever, also called allergic rhinitis, causes cold-like symptoms. These may include a runny nose, itchy eyes, congestion, sneezing and sinus pressure. But unlike a cold, hay fever isn't caus...
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Scarlet fever - Symptoms & causes - Mayo Clinic
Apr 30, 2025 · Learn more about the symptoms, causes, complications and treatment of this strep bacterial infection that causes a red rash, sore throat and high fever.
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Fiebre - Síntomas y causas - Mayo Clinic
Jul 19, 2022 · La temperatura corporal varía levemente según la persona y el momento del día. La temperatura promedio se ha establecido tradicionalmente en los 98,6 grados Fahrenheit (37 grados Celsius). Por lo genera...
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Dengue fever - Symptoms and causes - Mayo Clinic
Jul 17, 2024 · Overview Dengue (DENG-gey) fever is a mosquito-borne illness that occurs in tropical and subtropical areas of the world. Mild dengue fever causes a high fever and flu-like symptoms. The severe form of d...
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Mayo Clinic expert explains dengue fever
May 13, 2025 · The primary transmitter of dengue fever is the Aedes aegypti mosquito, known to bite during both day and night. About 1 in 4 people infected with the virus will experience symptoms ranging from mild to ...
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Rheumatic fever - Symptoms and causes - Mayo Clinic
Dec 2, 2023 · Rheumatic fever can cause long-lasting heart damage, including heart valve problems and heart failure. Treatment includes medicines to kill the strep bacteria. Other medicines are used to treat pain and ...