Influenza, commonly referred to as the flu, is a contagious infection caused by a virus. It is a common infection, and most people will come down with the flu several times throughout their life. The flu typically lasts 2-3 weeks and may require medical attention. In some instances, influenza can lead to serious complications such as viral pneumonia and sinus infections. The following symptoms may signal the onset of an influenza attack.
Most flu cases begin with the fever that can last anywhere from 4-5 days before breaking. A fever is your body's natural defense against the flu. Although a low-grade fever may occur in the case of colds, very high temperatures are characteristic of influenza. Temperatures may soar to 102 degrees or higher. It can be hard to tell the difference between a common cold and influenza in children. Their body temperatures are on average higher than adults, whether it comes to the flu or a cold. You should seek medical treatment for a high fever.
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