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Antiviral drugs

Drugs that act, are effective, or are directed against viruses.


Any of a large group of submicroscopic infective agents that are regarded either as extremely simple microorganisms or as extremely complex molecules, that typically contain a protein coat surrounding an RNA or DNA core of genetic material but no cell membrane, that are capable of growth and multiplication only in living cells, and that cause various important diseases in humans, animals, or plants.


A complete virus particle that consists of an RNA or DNA core with a protein coat sometimes with an external envelope and that is the extracellular infective form of a virus.


A process of disintegration or dissolution, as of cells.

Host cell

Cell on or in which smaller organisms or viruses live, feed, and reproduce.


The protein shell that encloses a viral genome. It may be rod-shaped, polyhedral, or more complex in shape.


A double layer of lipid surrounding the viral capsid.

Electron microscope

A microscope that focuses an electron beam through a specimen, resulting in resolving power a thousand-fold greater than that of a light microscope.

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