The representatives of this family of viruses are the three serologically unrelated types of influenza viruses A, B, and C, which are widely distributed in humans, other mammals and birds (Melnick, 1980). Type A is responsible for influenza pandemics and the regulär epidemics. Type B has been found only in man so far and causes more localized epidemics. Type C is, in many respects, somewhat different from the two other types and causes rare sporadic infections in humans. Very recently, it has been reported that orthomyxo-like viruses have been isolated from arthropods (Clerx et al., 1983). Orthomyxoviridae are spherical, measure 80 to 100 nm, contain helical NCs and are surrounded by an envelope covered with radial spikes.
KeywordsFree Ribosome Virus Release Virus Component Influenza Virus Replication Intracellular Synthesis
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