Supplemental Data Table S1. Comparison of the commercial kits for the fecal concentration in the detection of helminthes ova and the protozoan cysts.

Specimens	Average N of ova or cysts observed in a cover slip*
	Direct Ex†	FPC†	PMC†	TFC†	FCK†	C-FEC	Para-FEC
Cysts of Giardia lamblia	0.1	0.5	0.0	0.1	0.1	0.3	1.0
Ova of Necator americanus	1.4	0.3	0.1	0.4	0.2	-	-
Ova of Diphyllobothrium latum/D. nihonkaiense	-	-	-	-	-	0.2	0.2

^*Average numbers of ova or cysts observed in a cover slip are calculated according to the adjustment with the concentration of 40 ova or cysts per 1 mL of fecal samples; ^†indicates the results of Perry et al. comparing the parasite detection efficiencies of five fecal concentration systems [5].

Abbreviations: Direct Ex, Direct examination; FPC, Fecal Parasite Concentrator (Evergreen Scientific, Los Angeles, CA, USA); PMC, Para-Pak Macro-Con (Meridian Diagnostics, Inc., Cincinnati, OH, USA); TFC, Trend FeKal CON-Trate (Trend Scientific, Inc., St. Paul, MN, USA); FCK, Fecal Concentrator Kit (Remel, Lenexa, Kansas); C-FEC, conventional formalin-ether concentration; Para-FEC, modified formalin-ether concentration using Para Tube.