Genome replication strategies.- Model of Picornavirus RNA Replication.- Coronavirus Genome Replication.- Flaviviruses.- Hepatitis C Virus Genome Replication.- Brome Mosaic Virus RNA Replication and Transcription.- Retroviruses.- Hepadnaviral Genomic Replication.- Rhabdoviruses.- Orthomyxovirus Genome Transcription and Replication.- Arenaviruses: Genome Replication Strategies.- Core-Associated Genome Replication Mechanisms of dsRNA Viruses.- Poxviruses.- Herpesvirus Genome Replication.- Host Factors Promoting Viral RNA Replication.- Host Factors that Restrict Retrovirus Replication.- Elements, factors and enzymes: Structure-function and mechanism.- T4 Phage Replisome.- Atomic Structure of the Herpes Simplex Virus 1 DNA Polymerase.- RNA Virus Polymerases.- Human Immunodeficiency Virus Reverse Transcriptase.- Viral Helicases.- Integrase: Structure, Function, and Mechanism.- Antivirals: Targets, mechanisms and resistance.- Viral DNA Polymerase Inhibitors.- Viral RNA Polymerase Inhibitors.- HIV-1 Reverse Transcriptase Inhibitors and Mechanisms of Resistance.- Lethal Mutagenesis.- Clinical Implications of Reverse Transcriptase Inhibitor Resistance.