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  • Viruses are collections of biomolecules whose replication is dependent on the successful infection of a free-living organism's cells. All viruses consist of nucleic acid genome surrounded by a proteinacious covering that in some cases may possess a lipid membrane. Within this basic framework a wide variety of structural forms exist that can be used to classify viruses.
  • Infection requires the virus to enter the host cell cytoplasm and hijack metabolic processes in order to generate new viral particles that are then released to continue the replicative cycle. While some viruses can infect and replicate with little clinio-pathological consequences, the ones considered here ultimately cause human disease in certain contexts
Basic Virology
DNA Viruses
RNA Viruses
Hepatitis Viruses