A body temperature of 100 to 100.4 degrees is considered a fever, medically known as pyrexia, in adults. An oral temperature of 99.5 degrees or a rectal temperature of 100.4 degrees is considered ...

“For your average older child or adult, you may experience a degree of fever for a few days, certainly two or three days, without necessarily needing to get a lot of medical attention.” If your ...

But what kind of sickness do your symptoms point to? Here's a breakdown for COVID-19, flu and more — and why testing is so ...

Medically reviewed by Isabel Casimiro, MD, PhD When to see a healthcare provider for fever depends on a person’s age, whether ...

Experiencing a fever is a common sign of many illnesses ... and we’ve found that it’s suitable for all ages, including adults, infants, and elders. One thing to keep in mind is that the ...

Fever can be a symptom of pneumonia, but it is possible to have pneumonia with no fever. Learn more about how it’s diagnosed.

but adults with weakened immune systems are at risk, as well. One way to help prevent cat scratch fever is to keep your cat's claws trimmed. (Photo Credit: iStock/Getty Images) The most common ...

Seasonal sickness is on the rise and may be severe for the youngest in your homes. The CDC reports cases of whooping cough ...

Several people caught dengue fever locally in Los Angeles this fall. Climate change and invasive mosquitoes have made that ...

Lassa fever is a viral illness spread by the “multimammate rat” found in Sub-Saharan Africa, according to the CDC. Named after the Nigerian town where the first cases of the disease were detected in ...