Viral Anatomy Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes.

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Presentation transcript:

Viral Anatomy

Envelope Forms from host membrane Forms from host membrane Viral genome includes genes for surface proteins Viral genome includes genes for surface proteins

Reproductive Cycles Budding

HIV (retrovirus)

Treatment Vaccines Virus unable to replicate in host Virus unable to replicate in host Antiviral Drugs Inhibit nucleic acid synthesis Inhibit nucleic acid synthesis Inhibit capsid synthesis Inhibit capsid synthesis

Viral Emergence Spread from formerly isolated location - Ebola

Subviral Particles Viroids Infectious RNA disrupts metabolism in plants Infectious RNA disrupts metabolism in plantsPrions Misfolded proteins misfold normal proteins in animals Misfolded proteins misfold normal proteins in animals

Review Questions 1.What materials are found in every virus? 2.How do viroids and prions vary from virions? 3.What are effective ways to combat retroviruses? 4.How might new viruses emerge?