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A meaningful classification scheme based on the genetic relatedness of many
viruses may eventually result from recent studies concerning the degree of
similarity between the dna of one virus and that of another. In the mean- Names
of time, ...
The attenuated strains of virus, such as those used in vaccines, usually result in
apparent infections. If the host has some level of immunity to the virus, however,
these infections are often transient and inapparent as well. In such inapparent ...
With respect to the origin of viruses, however, there is only speculation thus far.
The relationship of viruses to their host cells indicates that the same mechanisms
are used by both entities to achieve common ends. Both the virus and host, ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review