Name the proteins which form peplomers in paramyxo- and orthomyxoviruses. Describe how new serotypes of influenza viruses arise quickly, often causing severe epidemics. Outline the strategy of orthomyxoviruses for transcription and replication. In most cases, the means of interference is not understood. Describe the course of a mumps infection, beginning with first exposure.
Vaccines vary in the level of protection and the duration of protection.
Natural infections vary in these aspects as well. Outline the scheme for translation and replication. Arenaviruses appear to have granules when seen in electronmicrographs. Nearly all enveloped viruses acquire the envelope lipids from the host cell. Outline a general scheme of the process.