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What is a Virus

What is a Virus?


What is a Virus
Virus 
A virus may be a magnifier infective agent that enters the animal, plant, or microorganism hosts. one virus particle, known as a particle, is small quite a bundle of genetic material- DNA-RNA- that doesn't take the shape of a cell. Instead, it's sheathed in a very shell known as an infective agent coat, or capsid, a product of bits of supermolecule. Some viruses have a further enclosure around the capsid known as associate degree envelope.

Viruses cannot perform while not their hosts. they can not synthesize proteins while not essential ingredients from their host cells, and that they will neither generate nor store energy on their own. In fact, viruses rely upon the host cells for all their metabolic functions.

Some scientists decline to count viruses among living organisms since they can not survive on their own and can't reproduce outside of a bunch cell. Not typically counted among plants, animals, or organism microorganisms, viruses area unit instead classified in a very cluster of their own.

What viruses will do, however, is infect, or cause sickness. as luck would have it, the immune systems of most animal species will forestall infection from several types of viruses. Antibiotics cannot cure infective agent sicknesses, however, vaccines will forestall them, and lots of widespread grievous infective agent outbreaks, like pox, are controlled or eliminated with vaccines.


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