TABLE 1.

PCR product sequence-BLAST A results for unknown presumptive human fecal and control microsporidia

Sample	Presence of microsporidia as determined by:		BLAST A resultsa		Probability of errorb
	IFA	PCR	Species	Nucleotide sequence accession no.
Unknown 42	+	+	Septata intestinalis	U39297	1.2 × 10−71
Unknown 60	+	+	Septata intestinalis	U39297	3.8 × 10−72
Unknown 64	+	+	Septata intestinalis	U39297	1.8 × 10−71
Unknown 70	+	+	Septata intestinalis	U39297	3.9 × 10−75
Unknown 208	+	+	Septata intestinalis	U39297	1.8 × 10−73
Enterocytozoon bieneusi positive control	NDc	+	Enterocytozoon bieneusi	L07123	1.3 × 10−73
Encephalitozoon intestinalis positive control	+	+	Septata intestinalis	U39297	3.4 × 10−73
Encephalitozoon cuniculi positive control	+	+	Encephalitozoon cuniculi	L39107	1.3 × 10−69
Encephalitozoon hellem positive control	+	+	Encephalitozoon hellem	L19070	1.6 × 10−77

^aThe organism whose sequence was identified by the BLAST A method as having the highest homology and the nucleotide sequence accession number of this sequence. 

^bThe probability (on a scale of 0 to 1) that the sequence identified occurred by chance. 

^cND, not determined.