What is a virus?

Answer:

Viruses are infectious agents that replicate inside the body of a host. Viruses are made up of nucleic acids (DNA or RNA) that are enclosed in a protective protein coat. These organisms may infect all kinds of life, ranging from bacteria to humans as a result, they cause a wide range of diseases in their victims.

Classification of viruses

The phenotypic properties of viruses, like morphology, chemical composition, structure, and function, are used to classify them. Viruses are divided into three categories based on their host

  1. Animal viruse
  2. Pslant viruses
  3. Bacteriophages

Examples of viral diseases

Few examples of viral deaseas are

  • AIDS
  • Ebola
  • Influenza
  • Small Pox
  • Chikungunya
  • SARS

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