RNA viruses

RNA are noncellular organisms with ribonucleic acid (RNA) in their genome. In most viruses, RNA is single-stranded (ssRNA). An exception is made by reoviruses, whose RNA is double-stranded (dsRNA).In addition, RNA is either segmented (the genome consists of several RNA segments) or unsegmented (one long strand of RNA). RNA viruses that have only a protein capsid on their surface are non-enveloped. RNA viruses, which in addition to the capsid have an additional envelope made of a bilayer of lipids and proteins and specific glycoproteins, are enveloped. The content of the lecture is the classification of RNA viruses and, for selected groups of RNA viruses, structure, replication in the host cell, pathogenicity, diseases, laboratory diagnostics, therapy and prevention are described.