Table 1.
Prevalence of various parasite elements found in chimpanzee stool sample set collected from 2003 to 2011 in the Mambele area of Cameroon
| Parasite elements (eggs or cysts) | Number of SIV+ samples positive for parasite elements (/43) | Prevalence among SIV+ samples | Number of SIV− positive for parasite elements (/71) | Prevalence among SIV− samples | Overall prevalence (SIV++ SIV− samples) |
|---|---|---|---|---|---|
| Strongylidae | 35 | 81.4 % | 62 | 87.3 % | 85.1 % |
| Ascaris | 1 | 2.3 % | 0 | 0 % | 0.9 % |
| Abbreviata | 0 | 0 % | 1 | 1.4 % | 0.9 % |
| Trichuris | 1 | 2.3 % | 3 | 4.2 % | 4.5 % |
| Capillaria | 2 | 4.6 % | 0 | 0 % | 1.8 % |
| Enterobius | 0 | 0 % | 3 | 4.2 % | 2.7 % |
| Bertiella | 2 | 4.6 % | 1 | 1.4 % | 2.7 % |
| Hymenolepis | 0 | 0 % | 1 | 1.4 % | 0.9 % |
| Fluke | 1 | 2.3 % | 1 | 1.4 % | 1.8 % |
| Unindentified egg | 8 | 18.6 %* | 4 | 5.6 %* | 10.5 % |
| Entamoeba | 3 | 6.9 % | 7 | 9.9 % | 8.8 % |
| Endolimax | 1 | 2.3 % | 4 | 5.6 % | 4.4 % |
| Iodamoeba | 1 | 2.3 % | 1 | 1.4 % | 1.8 % |
| Chilomastix | 2 | 4.6 % | 4 | 5.6 % | 5.2 % |
| Giardia | 0 | 0 % | 0 | 0 % | 0 % |
| Balantidium | 0 | 0 % | 1 | 1.4 % | 0.9 % |
| Troglodytella | 19 | 44.2 % | 31 | 43.6 % | 43.8 % |
| Blastocystis | 8 | 18.6 % | 17 | 23.4 % | 21.9 % |
Prevalence of the various helminths (A) or protozoa (B) elements was calculated for SIV+, SIV− and total chimpanzee samples. High prevalence (>20 %) is indicated in bold. Significant difference ((|ε|>1.96)) between SIV+ and SIV− groups is indicated by asterisk