Positive-sense single-stranded RNA virus

A positive-sense single-stranded RNA virus (or (+)ssRNA virus) is a virus which has positive sense single stranded RNA as its genetic material. They can be positive or negative. This depends on the polarity of the RNA. The positive-sense viral RNA genome can serve as messenger RNA and can be translated into protein in the host cell.

Many of the known viruses are positive-sense RNA viruses, including the hepacivirus C, West Nile virus, dengue virus, SARS and MERS coronaviruses, and SARS-CoV-2 as well as less serious pathogens such as the rhinoviruses that cause the common cold.

Positive-sense Single-stranded RNA Virus Media

• 

  Life cycle of Japanese encephalitis virus a +ssRNA virus: attachment, endocytosis, membrane fusion, uncoating, translation, RNA replication, assembly, maturation, and release.

• Mechanisms of replicative and nonreplicative RNA recombination.

• 

  Phylogenetic tree with phylum branches highlighted. Negarnaviricota (brown), Duplornaviricota (green), Kitrinoviricota (pink), Pisuviricota (blue), and Lenarviricota (yellow).

• False-color Transmission electron micrograph of a SARS-CoV-2 virion. Coronaviruses like SARS-CoV-2 fall in the phylum Pisuviricota.