Positive-Strand RNA Viruses

**Definition:** RNA viruses that have their genetic material encoded in the form of single-stranded, positive-sense RNA. Unlike RETROVIRUSES they do not employ DNA intermediates in their life-cycle.

**Tree numbers:** - B04.820.578

**Synonyms:** - (+) Sense RNA Viruses - Sense-Strand RNA Viruses - Group IV Single-Stranded RNA Viruses - Positive Sense RNA Viruses