QUESTIONS for 'VIRAL VILLIANS' ARTICLE

Scientists have divided these viruses into eight groups. Most colds (30 - 50%) are caused by viruses from the rhino ("nose") and corona ("crown-like") virus groups. The influenza virus makes up another group. It, in turn, has three major types. types A and B account for most flu outbreaks. Type C is less active, causing milder infections. ................
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