Fig 1.

Phylogenetic relationships among Enterocytozoon bieneusi genotype group 1 and all other genotypes reported and available in GenBank as well as the nucleotide sequence identified in this study (MAY1), inferred by a neighbor-joining analysis of the ITS rRNA gene sequence, based on genetic distances calculated by the Kimura two-parameter model. ●, nucleotide sequence determined in this study (MAY1). Bootstrap values of less than 75% are not shown. The complete phylogenetic tree, including all E. bieneusi ITS genotypes published at the time this report was prepared, is available upon request.