Flu which will attack the people and cause severe fever for few days and it will affect the health of the person. Symptoms appear within 2-3 days of the viral attack. The flu begins abruptly with high fever between 102-104 degree F accompanied with body ache, a flushed face, chills, headache, nausea and excessive fatigue. The fever can last for up to five days. Interestingly, around the third day, although the symptoms tend to subside, respiratory symptoms begin to increase. Most people develop a runny nose, sneezing, a sore throat, headache and a dry hacking cough. These signs except for the cough disappear within 4-7 days. Cough and fatigue can last for weeks even after the flu has gone.
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