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 3
Risk factors for fish-borne zoonotic trematodes infection in domestic animals, Nghe An Province, Vietnam, November 2005*
| Variable | No. samples | Univariable analysis |
||
|---|---|---|---|---|
| Crude OR | 95% CI | p value | ||
| Animal species† | <0.001 | |||
| Dogs | 80 | 3.3 | 1.6–6.6 | |
| Cats | 35 | 5.7 | 2.5–13.5 | |
| Pigs |
114 |
1 |
– |
|
| Age, mo | ||||
| <12 | 174 | 1.2 | 0.6–2.3 | 0.64 |
| >12 |
55 |
1 |
– |
|
| Free-roaming | 0.0001 | |||
| Always | 117 | 0.6 | 0.4–0.8 | |
| Sometimes | 4 | Inf | ||
| Never |
108 |
1 |
– |
|
| Fed raw fish | ||||
| Sometimes | 91 | 1.9 | 1.0–3.4 | 0.04 |
| Never |
138 |
1 |
||
| Eats raw fish | ||||
| Sometimes | 158 | 4.0 | 2.2–7.5 | <0.0001 |
| Never | 71 | 1 | ||
*Data from all dogs, cats, and pigs were analyzed. OR, odds ratio; CI, confidence interval; Inf, infinity.
†Multivariable analysis showed an interaction only between animal species and feeding raw fish; p = 0.02.
