Viruses

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Viruses
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Viruses
Viruses consist of genetic materialeither
deoxyribonucleic acid (DNA) or ribonucleic acid
(RNA)surrounded by a protective coating of
protein, called a capsid, with or without an
outer lipid envelope.
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Are Viruses Alive?

• The only metabolic process viruses can do is
  reproduce, but they need a host

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Chicken Pox Virus
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Rabies
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Life Cycle of HIV
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Ebola Virus
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Common Cold Virus
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Measles
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Polio
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Hepatitis B
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Bacteriophage
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Viral Structure
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Lytic and Lysogenic Cycles of the Bacteriophage
Virus
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Viral Replication
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Vaccine

• vaccine (v k-s n , v k s n ) n. A preparation
  of a weakened or killed pathogen, such as a
  bacterium or virus, or of a portion of the
  pathogen's structure that upon administration
  stimulates antibody production or cellular
  immunity against the pathogen but is incapable of
  causing severe infection. (thefreedictionary.com)