Table 3.

Prevalence of protozoan parasites.

Species/Taxon	%	95% CL
Blastocystis hominis	4.7	3.43–6.26
Giardia duodenalis	1.7	1.05–2.83
Dientamoeba fragilis	4.0	2.85–5.49
Entamoeba histolytica	0.17	0.090–0.690
Cryptosporidium (species combined)	15.1	13.25–18.07
C. parvum	14.7	12.44–17.15
C. hominis	0.86	0.450–1.710
C. meleagridis	0.34	0.180–0.940
All species combined	22.9	20.25–25.85