Table 2.
Prevalence and mean intensity (MI) per gram of feces, brain tissue, or blood of parasites in Mus musculus and Rattus ratttus
| Parasite/Rodent |
M. musculus No. of mammals (%) |
R. rattus No. of mammals (%) |
Combined No. of mammals (%) |
M. musculus MI±SEM |
R. rattus MI±SEM |
Combined MI±SEM |
|
|---|---|---|---|---|---|---|---|
| Nematodes (feces) | Aspicularis sp. | 11 (3.0) | 5 (5.0) | 16 (4.0) | 73.8±37.6 | 11.3±3.5 | 50.4±25.2 |
| Capillaria sp. | 1 (0.27) | 0 | 1 (0.21) | ND | ND | ND | |
| Heterakis spumosa | 15 (4.2) | 5 (5.0) | 20 (4.3) | 595.6±242.8 | 37.0±3.6 | 507.4±209.1 | |
| Mastophorus muris | 12 (3.3) | 6 (5.9) | 18 (3.9) | 253.3±150.0 | 64.2±40.7 | 190.3±102.5 | |
| Nippostrongylus brasiliensis | 11 (3.0) | 11 (12.9) | 22 (4.8) | 97.9±51.0 | 69.2±28.4 | 82.2±27.5 | |
| Strongyloides sp. | 34 (9.4) | 18 (17.8) | 52 (11.3) | 1179.0±57.1 | 60.6±31.5 | 843.7±408.9 | |
| Trichosomoides sp. | 1 (0.27) | 0 | 1 (0.21) | ND | ND | ND | |
| Trichuris sp. | 13 (3.9) | 3 (3.0) | 16 (3.5) | 120.7±42.8 | 61.2±44.8 | 100.9±32.1 | |
|
| |||||||
| Nematode (brain) | Angiostrongylus sp. | 3 (0.83) | 0 | 3 (0.64) | ND | ND | ND |
|
| |||||||
| Acanthocephala (feces) | Monilliformis moniliformis | 0 | 1 (0.99) | 1 (0.21) | ND | ND | ND |
|
| |||||||
| Cestodes (feces) | H. diminuta | 1 (0.27) | 0 | 1 (0.21) | ND | ND | ND |
| H. nana | 2 (0.55) | 1 (0.99) | 3 (0.64) | ND | ND | ND | |
|
| |||||||
| Protozoans (feces) | Eimeria sp. | 49 (13.6) | 28 (27.7) | 77 (16.7) | 692.1±250.1 | 663.9±419.3 | 684.1±213.0 |
| Isospora sp. | 43 (11.9) | 7 (6.9) | 50 (10.8) | 309.3±93.2 | 204.6±111.1 | 290.0±78.4 | |
|
| |||||||
| Protozoans (blood) | Babesia sp. | 6 (1.8)a | 1 (1.2)b | 7 (1.7)c | ND | ND | ND |
| Plasmodium sp. | 188 (57.1)a | 45 (52.9)b | 233 (56.3)c | ND | ND | ND | |
| Trypanosoma lewisi | 8 (2.2) | 3 (3.5)b | 10 (2.4) | ND | ND | ND | |
|
| |||||||
| Protozoan (brain) | Toxoplasma gondii | 1 (0.27) | 1 (0.99) | 2 (0.43) | ND | ND | ND |
SEM, standard error of mean; ND, not determined.
a
% positive calculated with the sample size of M. musculus (n=329).
b
% positive calculated with the sample size of R. rattus (n=85).
c
% positive calculated with the combined sample size of M. musculus and R. rattus (n=414).