Easy Facts on Influenza

Overview

The National Institutes of Health states that each year, 5 percent to 20 percent of Americans become ill with influenza (flu). Heavy flu activity can occur as early as October and typically peaks around February.

Symptoms

Influenza symptoms may include headache, aches and pains, fever, sore throat, cough and chills.

Identification

The common cold and influenza are both respiratory viral infections. Flu infection usually presents with fever and headache, and the symptoms are generally more severe than those of a cold.

Prevention

According to the Center for Disease Control (CDC), the best way to avoid contracting the flu virus is to get a flu vaccine. The vaccine protects against three influenza viruses and is re-evaluated yearly. Also, take general precautions such as hand-washing and avoiding close contact with sick people.

Treatment

Most people affected with the influenza virus do not require medical treatment. However, high risk patients, such as the elderly, young children and pregnant women may require antiviral medication to avoid complications.

Duration

Most flu symptoms, such as fever and chills, usually are gone within five days. Weakness and a cough may persist for up to two weeks.