Table 3.

Frequency of intestinal protist species detected in zookeepers handling non-human primates by participating institution and sampling period in the present study.

			Cryptosporidium spp.		E. histolytica		E. dispar		G. duodenalis		Blastocystis sp.		E. bieneusi		B. coli
Institution	Sampling period	Samples (n)	Pos.	%	Pos.	%	Pos.	%	Pos.	%	Pos.	%	Pos.	%	Pos.	%
Barcelona Zoo	1	5	0	0.0	0	0.0	0	0.0	0	0.0	2	40.0	0	0.0	0	0.0
	2	2	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
	Both	7	0	0.0	0	0.0	0	0.0	0	0.0	2	28.6	0	0.0	0	0.0
Faunia	1	6	0	0.0	0	0.0	0	0.0	0	0.0	2	33.3	0	0.0	0	0.0
	2	9	0	0.0	0	0.0	0	0.0	0	0.0	2	22.2	0	0.0	0	0.0
	Both	15	0	0.0	0	0.0	0	0.0	0	0.0	4	26.7	0	0.0	0	0.0
Madrid Zoo	1	17	2	11.8	0	0.0	0	0.0	1	5.9	8	47.1	0	0.0	0	0.0
Aquarium	2	14	0	0.0	0	0.0	0	0.0	0	0.0	1	7.1	0	0.0	0	0.0
	Both	31	2	6.5	0	0.0	0	0.0	1	3.2	9	29.0	0	0.0	0	0.0
Santillana Zoo	1	3	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
	2	6	0	0.0	0	0.0	0	0.0	0	0.0	3	50.0	0	0.0	0	0.0
	Both	9	0	0.0	0	0.0	0	0.0	0	0.0	3	33.3	0	0.0	0	0.0
La Vallée des	1	6	0	0.0	0	0.0	1	16.7	0	0.0	0	0.0	0	0.0	0	0.0
Singes	2	2	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0
	Both	8	0	0.0	0	0.0	1	12.5	0	0.0	0	0.0	0	0.0	0	0.0
Total		70	2	2.9	0	0.0	1	1.4	1	1.4	18	25.7	0	0.0	0	0.0

Wilhelma Zoological-Botanical Garden did not provide stool samples of human origin for this survey. Troglodytella abrassarti was not investigated in human beings because of its ape-specific nature.