Phylogenetic relationships among Brazilian and previously characterized hantaviruses. Maximum parsimony analysis of the nucleotide sequence of 303-nt fragment of the G2 gene was performed with the heuristic search option. Bootstrap values of >50%, obtained from 500 replicates of the analysis are shown. Abbreviations and GenBank accession numbers of the previously published sequences of the hantaviruses used in this study: Andes, AND-AF324901; Araraquara, ARA-AF307327; Bayou, BAY-L36930; Bermejo, BMJ-AF028025; Castelo dos Sonhos, CAS- AF307326; Hu39694-AF028023; Lechiguanas, LEC-AF028022; Laguna Negra, LN-AF005728; Maciel, MAC-AF028027; Oran, ORN-AF028024; Pergamino, PRG-AF028028; Prospect Hill, PH-X55129; Puumala, PUU-X61034; Sin Nombre, SN-CC74L33684; Hantaan, HTN strain 76/118-Y00386; Seoul, SEO-M34882; Black Creek Canal, BCC-L399500.