Arenaviridae

noun plural

Are·​na·​vi·​ri·​dae ˌar-ə-nə-ˈvir-ə-ˌdē, ə-ˌrē- 

: a family of single-stranded RNA viruses that have a grainy appearance due to the presence of ribosomes in the virion and that are usually transmitted to humans by infected wild rodents through contamination of food and personal items or by inhalation of the airborne virus