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please tell me what a viral infection is and is it contagiou what does viral mean i dont have this but a friend does and am curious about this disease

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Viruses are capsules with genetic materials inside. They are very tiny, much smaller than bacteria. Viruses cause familiar infectious diseases such as the common cold, the flu and warts. They also cause more severe illness's sich as Aids, smallpox and fevers. Viruses's are highjackers. They invade living normal cells and use those cells to mulitply and produce other viruses like themselves. They eventually kill cells, which makes you sick.
Viruses are hard to treat because they live inside your body cells. They are protected from medicines, which usually move thru your blood stream. Antibiotics do not work. There are very few antiviral medications available.
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