Lesson 2: RNA Viruses

Things to Remember about RNA Viruses

• All RNA viruses are ssRNA except REO is dsRNA
• All RNA viruses replicate in the cytoplasm except (ORB) ORTHOMYXO, RETRO, and BORNA replicate in the nucleus
• 3 RNA viruses are non enveloped (PCR), (PCR = PICORNA, CALICI –Noro-, REO)
• 5 RNA viruses have icosahedral symmetry (PCR + FT), (PCR = PICORNA, CALICI, REO) (FT = FLAVI, TOGA)

Below is a summary of RNA virus families based on criteria for classification and their properties. The details for each RNA virus family will be covered on separate topics.

EXTENSIVE SUMMARY OF RNA VIRUSES

RNA Viruses of Veterinary and Medical Importance