FIG. 4.

Sequence comparisons of the different Andes lineages and American HPS hantaviruses. The frequency (F) versus the percentage of similarity (S) from a total of 76 samples obtained after comparison of 5,700 paired sequences of a 226-nt G2 fragment (nt 2721 to 2946). Striped bars represent different sequences belonging to the same AND lineage. White bars represent sequences belonging to different AND lineages or viruses from the six countries in South America studied. Black bars represent North American HPS viruses, American viruses, or viruses from different hemispheres. The AND lineages include 14 AND Nort samples, 16 AND Cent Bs.As. samples, 5 AND Cent Plata sequences, 3 AND Cent Lec sequences, and 29 AND Sout sequences. North American HPS viruses include SN, NY, BCC, and BAY. South American HPS viruses include LN, Parag3/98, Parag1/98, and Arg-Bol/98. MACIEL virus was also included in the analysis.