Viral diseases and the reason for the difficulties to produce vaccines against some viruses. Introduction: Viruses are microscopic, infectious particles. Viruses are composed of genetic material DNA or RNA along with a protein capsid and in some instances a lipid envelope. These viruses require a living host for their replication and survival and show no activity outside the body.

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Chapter 28.5, Problem 3LO

Summary Introduction

To determine:

Viral diseases and the reason for the difficulties to produce vaccines against some viruses.

Introduction:

Viruses are microscopic, infectious particles. Viruses are composed of genetic material DNA or RNA along with a protein capsid and in some instances a lipid envelope. These viruses require a living host for their replication and survival and show no activity outside the body.

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