fever: Quick Facts

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The Information Architects of Encyclopaedia Britannica

Last updated

Sep. 25, 2026

Facts

Also Known As	pyrexia

Videos

Why do people get a fever when they're sick?

The difference between viral and bacterial infections

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Topics

Ebola yellow fever chikungunya fever dengue scarlet fever Zika fever rheumatic fever typhoid fever thermometer severe fever with thrombocytopenia syndrome seizure biomarker itching cough sore throat vital sign lethargy angina pectoris polyuria arrhythmia

Key People

Billroth, Theodor

Theodor Billroth

Viennese surgeon

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