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Virology

Virology is a division of science, which concentrates on the study of viruses and organisms which act like bacteria, such as prions and viroids.

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Virology

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  1. Virology

  2. What is virology? Virology is the study of viruses and virus-like agents: their structure, classification and evolution, their ways to infect and exploit cells for virus reproduction, the diseases they cause, the techniques to isolate and culture them, and their use in research and therapy.

  3. Structure of Virus: • Viruses come in an amazing variety of shapes and sizes. They are very small and are measured in nanometers, which is one-billionth of a meter. • Viruses can range in the size between 20 to 750nm, which is 45,000 times smaller than the width of a human hair. The majority of viruses cannot be seen with a light microscope because the resolution of a light microscope is limited to about 200nm.

  4. Enteroviruses: • Enteroviruses are small viruses. The enteroviruses that occur in the United States include coxsackieviruses and echoviruses. • Polioviruses are also included in the term “enterovirus,” but they have been eradicated from the United States by vaccination. In all, more than 60 different types of enteroviruses have been identified.

  5. Viral Diseases: One main motivation for the study of viruses is the fact that they cause many important infectious diseases, among them the common cold, influenza, rabies, measles, many forms of diarrhea, hepatitis, yellow fever, polio, smallpox and AIDS.

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