[1] The virus is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein.

[6][7] Its principal host is papaya (Carica papaya), although in host range studies, PapMV was able to infect a few other plants including snapdragons (Antirrhinum majus).

The two viruses were differentiated in 1965 and 1967 using particle lengths, serology, host range,[9] inclusions, and aphid transmissibility.

[10] PapMV causes mild mosaic symptoms on papaya leaves and stunting of the plant.

[11] It is known to occur in South America (Bolivia, Peru, and Venezuela) and the USA.