Figure. G-gene phylogenetic relationships of 6 human metapneumovirus (HMPV) isolates detected in South America during 2002 and 2003 compared to prototypic HMPV isolates from the Netherlands: NL/1/00, NL/17/00, NL/1/99, NL/1/94 (accession nos. AF371337, AY296021, AY525843, and AY296040, respectively) and from Canada: Can97-83, HMPV-13-00, CAN98-75, and HMPV-33-01 (accession nos. AY485253, AY485232, AY485245, and AY485242, respectively). Classification of genotypes was made according to previous reports (13,14).