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 …

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? …

Jun 25, 2024 · A fever is a rise in body temperature. It's often a sign of infection. Fever itself most often is harmless and it may play a role in fighting infection. Most fevers don't need treatment. …

May 7, 2022 · Write down information about the fever, such as when it started, how and where you measured it (orally or rectally, for example) and any other symptoms. Note whether you or …

Oct 17, 2024 · The inflammation from meningitis most often triggers symptoms such as headache, fever and a stiff neck. Viral infections are the most common cause of meningitis in the United …

Apr 30, 2025 · Low-grade fever; Depending on the cause, viral gastroenteritis symptoms may appear within 1-3 days after you're infected and can range from mild to severe. Symptoms …

Jun 13, 2020 · Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, …

Apr 30, 2025 · Scarlet fever is a bacterial illness that develops in some people who have strep throat. Also known as scarlatina, scarlet fever features a bright red rash that covers most of …

Nov 12, 2024 · If you travel to an area where a hemorrhagic fever is common, you can be infected there but not get symptoms until after you return home. It might take from 2 to 21 days to get …

Mar 1, 2025 · This vaccine may cause serious allergic reactions affecting multiple body organs (e.g., liver or kidney). Check with your doctor right away if you have the following symptoms: …