A virus is a small infectious agent that replicates only inside the living cells of
other organisms. Viruses can infect all types of life forms, from animals and plants
Feb 28, 2013 ... Viruses are tiny organisms that may lead to mild to severe illnesses in humans,
animals and plants. This may include flu or a cold to something ...
Jan 5, 2016 ... Viruses are microscopic parasites that lack the capacity to thrive and reproduce
outside of a host body.
Viruses are strange things that straddle the fence between living and non-living.
On the one hand, if they're floating around in the air or sitting on a doorknob, ...
Introduction to viruses. ... Viruses. AboutTranscript. Introduction to viruses.
Created by Sal Khan. Share Tweet Email. Viruses. Viruses · Intro to viruses.
Jul 11, 2016 ... This article explains what viruses are and how they work. It also clears up the
confusion between viruses and bacteria, and the way they are ...
Viruses. Properties: They are obligate intracellular parasites. Probably there are
no cells in nature that escape infection by one or more kinds of viruses. (Viruses ...
Viruses that affect human health. Read the latest medical research on virology,
from herpes virus to ebola virus and more.
A virus is a microscopic particle that can infect the cells of a biological organism.
Viruses can only replicate themselves by infecting a host cell and therefore ...