A fever is usually described as when a person’s body temperature is 100.4 F or higher. Most people get a fever because they’re sick or have an infection. It can be hard to know that someone has one.

Fever is a common symptom of COVID-19. However, not everyone who develops COVID-19 will experience fever. Some other common symptoms include cough, fatigue, and loss of smell or taste. This ...

Allergies do not cause a fever, but they may lead to health issues that can cause a fever, such as a sinus infection. Other conditions, such as bacterial or viral infections, can have similar symptoms ...

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Aliza Chasan is a Digital Content Producer for "60 Minutes" and CBSNews.com. She has previously written for outlets including PIX11 News, The New York Daily News, Inside Edition and DNAinfo. Aliza ...

Whether stemming from a wound, a toothache or an infection like the flu, nearly everyone has experienced the discomfort of having a fever. While fevers can be inconvenient and are sometimes a sign of ...

Fevers are one of the most common symptoms going around during peak COVID and flu season. And if you’re feeling like you’re burning up, it’s likely that your body temperature is spiking, too. Still, ...

Fever after surgery is very common. Most cases are harmless and go away on their own. Postoperative fever is when your temperature goes above 102.2 F on any day after surgery or above 100.4 F on any ...