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. Give examples of viruses which use these specific sources. Give examples of viruses for the mechanisms described. Describe conservative and semi-conservative mechanisms of mRNA production by dsRNA viruses, noting the significant differences.