Dengue fever is a flu-like illness that can be fatal if not treated. Legionella (Legionnaires disease) Legionnaires' disease is a severe type of pneumonia and causes headache, chills, high fever, a cough, and more. Typhoid fever. Typhoid fever is a life-threatening illness and causes fever, general aches and pains, headache, and weakness. A temperature of up to °C (°F) can be helpful because it helps the body fight infection. Most healthy children and adults can tolerate a fever as high as °C (°F) to 40°C (°F) for short periods of time without problems. Children tend to have higher fevers than adults. The degree of fever may not show how serious the.
You probably always heard that the average human body temperature is F. But the reality is that a "normal" body temperature can fall within a wide range, from 97 F to 99 F. Feb 08, · Call your provider right away if you are an adult and you: Have a fever of °F (°C) or higher, unless it comes down readily with treatment and you are comfortable; Have a fever that stays at or keeps rising above °F (°C) Have a fever .
Dec 22, · I remember reading years ago, an adult at with nausea, headache or pain should go to the ER. Also if they are at and not holding down liquids they should go to the ER because they are probably dehydrated. At - get to the ER fast no matter how you are feeling - as an adult that's a dangerous fever. That is what we go by. May 22, · My 17 year old son has had fever for 3 days, high of , usually around Now it's only just above normal. Only symptom is a slight cough. If the fever, even low grade continues for a fourth ful read more.