It happens every year, especially in winter. A virus saunters into your wide-open respiratory tract, worms its way into lung cells, and, next thing you know, you’re lying in bed with a fever, aches, and chills—classic symptoms of influenza, or flu.
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Each fall, classrooms full of kids become smoldering hotpots of colds, flu, stomach viruses, and germs that fester and spread. Doctors expect this; in fact, it’s how young bodies build immunity against these illnesses. But last year was an astonishing exception, with
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The FINANCIAL -- CDC (U.S. health protection agency) recommends a yearly flu vaccine as the first and most important step in protecting against influenza and its potentially serious complications.
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