About Influenza

The incubation period of influenza is 1-4 days, and while some strains of influenza in some hosts results in mild symptoms exactly like the common cold, influenza is usually more severe; it usually has a sudden onset with “constitutional” (total body-wide, nonspecific) manifestations like high fever, chills, headache, muscle aches (myalgias), weakness, malaise, and fatigue; then upper ... ................
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