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In this lecture we discuss reverse transcriptase, an enzyme that produces DNA from RNA.
What is a Virus?
In this lecture we discuss reverse transcriptase, an enzyme that produces DNA from RNA.
What is a Virus?
In this lecture we discuss the mechanisms for assembly of new virus particles.
The Infectious Cycle
Viral reproduction places enormous demands on the host cell's biosynthetic and metabolic capabilities.
Genomes and Genetics
This course now moves to a discussion of viral pathogenesis, the process by which viruses cause disease.
Structure of Viruses
Host barriers against virus infections, which include chemical and physical defenses such as skin and mucus.
Attachment and Entry
The final barrier to virus reproduction in the host is the adaptive immune system, which is tailored to the pathogen and has memory
RNA directed RNA synthesis
A process called pathogenesis - through a combination of the effects of virus replication and the immune response.
Transcription and RNA
An acute infection is characterized by rapid onset of virus reproduction, a brief but potentially severe course of disease.
Viral DNA Replication
A persistent viral infection typically lasts for the lifetime of the host. In this lecture we discuss the mechanisms and consequences.
Reverse transcription
About 20% of human cancers are associated with virus infections. Making cells immortal places them on the road to cancer.
Assembly
In this lecture we discuss examples of how different types of vaccines work, including inactivated vaccines, subunit vaccines.
The Infected Cell
Unlike most vaccines, antiviral drugs can stop an infection once it has started. In this lecture we discuss antiviral drug discovery.
Infection Basics