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A fever is when your body temperature rises higher than normal. A fever itself isn’t an illness. Rather, it’s a symptom of a wide range of health conditions. When your body temperature rises a few degrees above normal, it can be a sign that your immune system has been activated, often to fight an infection. It can also be a side effect of ...
High fever (>39.5 °C) is often associated with influenza A virus infections, occurring in more than 50% of children. Adenovirus infection causes fever exceeding 40 °C in about 20%, while fever in rhinovirus infection is usually absent or mild. Fever associated with respiratory virus infection may last for 3–5 days.
A fever is the body's normal and healthy reaction to infection and other illnesses, both minor and serious. It helps the body fight infection. A fever is a symptom, not a disease. In most cases, having a fever means that you have a minor illness. When you have a fever, your other symptoms will help you know how serious your illness is.
The degree of elevation in temperature usually does not predict the likelihood or cause of infection. Fever pattern, once thought to be significant, rarely is helpful with the possible exceptions of tertian and quartan malaria and relapsing episodes (eg, brucellosis). Likelihood of serious illness is considered. If serious illness is suspected ...
- Larry M. Bush
The 5 types of fever are intermittent, remittent, continuous or sustained, hectic, and relapsing. A fever is a physiological problem when your body temperature is above the normal range. An elevated body temperature usually accompanies an underlying condition. Your body increases your temperature to help fight infection or signal a problem from ...
May 7, 2022 · Has a fever that lasts longer than three days. Has a seizure associated with the fever. Call 911 if the seizure lasts more than five minutes or your child doesn't recover quickly. Ask your child's health care provider for guidance in special circumstances, such as a child with immune system problems or with a preexisting illness. Adults
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Sep 8, 2024 · High temperature (fever) is caused by the release of certain chemicals by the immune system, usually as a result of infection or inflammation. Most fevers are caused by infections or other illnesses. Viral infections are the commonest causes of a fever.