Volume 13, Number 9—September 2007
Dispatch
Poultry Drinking Water Used for Avian Influenza Surveillance
Y.H. Connie Leung*, Li-Juan Zhang*, Chun-Kin Chow*, Chun-Lok Tsang*, Chi-Fung Ng*, Chun-Kuen Wong*, Yi Guan*1, and J.S. Malik Peiris*1
Table 2
Newcastle disease virus in chickens (August 2004–July 2005) and minor poultry (August 2004–November 2006)*
| Species | No. pos/no. tested (% pos) |
|||
|---|---|---|---|---|
| Overall isolation rate | Feces only | Drinking water only | Feces and drinking water | |
| Chicken | 95/2,503 (3.8) | 53/2,503 (2.1) | 33/2,503 (1.3) | 9/2,503 (0.4) |
| Minor poultry | ||||
| Silkie chicken | 8/171 (4.7) | 6/171 (3.5) | 2/171 (1.2) | 0/171 (0) |
| Guinea fowl | 2/13 (15.4) | 2/13 (15.4) | 0/13 (0) | 0/13 (0) |
| Pigeon | 4/158 (2.5) | 2/158 (1.3) | 2/158 (1.3) | 0/158 (0) |
| Chukar | 1/23 (4.3) | 1/23 (4.3) | 0/23 (0) | 0/23 (0) |
| Pheasant | 0/48 (0) | 0/48 (0) | 0/48 (0) | 0/48 (0) |
*Pos, positive for Newcastle disease virus.
