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Influenza is like a cold in that they are both respiratory infections caused by viruses. Exposure to cold and wet, overwork, loss of sleep, and other exhausting conditions lower bodily resistance and prepare the way for the virus to begin its work. People who live truly hygienic lives seldom have colds.
Signs & Symptoms Usually colds begin slowly, 2-3 days after infection with the virus. Symptoms tend to be worse in infants and young children, who sometimes run temperatures of up to 102°F (39°C). Indications of the flu include sudden onset with a headache, dry cough, and chills. Fever of up to 104°F (40°C) is common. The fever typically begins to subside on the second or third day, and then respiratory symptoms like nasal congestion and sore throat appear. Fatigue and weakness may continue for days or even weeks. Allergies, too, can resemble colds with their runny noses, sneezing and malaise.
Some doctors say not to take any action unless it gets over 103-104°F (39.4-40°C). While long-term fevers can be dangerous, a fever that runs its natural course is usually quite safe if monitored closely. |
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