Volume 15, Number 4—April 2009
Research
Animal Reservoir Hosts and Fish-borne Zoonotic Trematode Infections on Fish Farms, Vietnam
Nguyen Thi Lan Anh
, Nguyen Thi Phuong, K. Darwin Murrell, Maria Vang Johansen, Anders Dalsgaard, Luong To Thu, Tran Thi Kim Chi, and Stig Milan Thamsborg
, Nguyen Thi Phuong, K. Darwin Murrell, Maria Vang Johansen, Anders Dalsgaard, Luong To Thu, Tran Thi Kim Chi, and Stig Milan ThamsborgTable 2
Trematode infections in domestic animals, by trematode species, Nghe An Province, Vietnam, November 2005
| Animal species | Trematode species | Prevalence, %* | Intensity of adult worms |
|
|---|---|---|---|---|
| Mean ± SD† | Maximum | |||
| Dogs (n = 27) | Haplorchis pumilio | 92.6 | 47 ± 83 | 348 |
| H. taichui | 62.9 | 28 ± 47 | 160 | |
| H. yokogawai | 25.9 | 13 ± 25 | 69 | |
| Haplorchis spp. | 62.9 | 30 ± 41 | 123 | |
| Echinochasmus japonicus | 29.6 | 38 ± 79 | 231 | |
| E. perfoliatus | 18.5 | 3 ± 3 | 9 | |
| Echinostoma cinetorchis | 3.7 | 2 | 2 | |
| Centrocestus formosanus | 11.1 | 16 ± 24 | 44 | |
| Not identified | 11.1 | 10 ± 8 | 15 | |
| All |
100 |
99 ± 201 |
924 |
|
| Cats (n = 18) | H. pumilio | 100 | 33 ± 62 | 268 |
| H. taichui | 77.8 | 33 ± 94 | 357 | |
| H. yokogawai | 11.1 | 105 ± 136 | 201 | |
| Haplorchis spp. | 77.8 | 51 ± 135 | 514 | |
| E. perforliatus | 5.6 | 3 | 3 | |
| C. formosanus | 5.6 | 4 | 4 | |
| Not identified | 22.2 | 8 ± 4 | 10 | |
| All |
100 |
112 ± 309 |
1,340 |
|
| Pigs (n = 5) | H. pumilio | 100 | 5 ± 4 | 13 |
| H. taichui | 60 | 2 | 2 | |
| H. yokogawai | 40 | 2 | 2 | |
| Haplorchis spp. | 100 | 12 ± 13 | 29 | |
| E. japonicus | 60 | 3 ± 3 | 6 | |
| Not identified | 60 | 13 ± 16 | 32 | |
| All | 100 | 29 ± 32 | 84 | |
*Based on estimation of worm burdens in animals with positive fecal egg counts.
†SD provided only for trematode species in >1 animal.
