What hantavirus strains exist and which rodents carry them?

Hantaviruses are reservoir-host specific: each virus is maintained in one or a few rodent species, and human infection occurs as a spillover. Sin Nombre virus is the dominant New World hantavirus in North America and is carried by the deer mouse (Peromyscus maniculatus); it causes HPS. Andes virus, carried by the long-tailed pygmy rice rat (Oligoryzomys longicaudatus), causes severe HPS in Argentina and Chile and is uniquely capable of person-to-person spread. Hantaan virus, carried by the striped field mouse (Apodemus agrarius), causes the most severe HFRS in East Asia. Puumala virus, carried by the bank vole (Myodes glareolus), causes the milder nephropathia epidemica syndrome across northern Europe. Seoul virus, carried by Norway rats (Rattus norvegicus), has a worldwide distribution wherever Norway rats are established and causes moderate HFRS. Other significant strains include Dobrava-Belgrade virus in the Balkans, and Juquitiba, Araraquara, Castelo dos Sonhos, and Laguna Negra viruses in Brazil, Paraguay, and the broader Southern Cone.