TABLE 2.
Prevalence of Salmonella in flock B during longitudinal sampling
| Collection no. | Week of lay | No. of positive isolates/total no. of indicated sample type: |
Sample type(s) and Salmonella serovar(s) (no. of isolates)a | |||
|---|---|---|---|---|---|---|
| Eggshells | Feces | Egg belt | Dust | |||
| 1 | 38 | 0/31 | 1/7 | 0/7 | 1/5 | Feces and dust: S. Oranienburg |
| 2 | 42 | 0/36 | 0/7 | 0/7 | 1/5 | Dust: S. Oranienburg |
| 3 | 46 | 0/39 | 0/7 | 0/7 | 1/5 | Dust: S. Agona |
| 4 | 50 | 0/27 | 0/7 | 2/7 | 2/5 | Egg belt: S. Oranienburg (1), S. Agona (1); dust: S. Oranienburg (1), S. Agona (1) |
| 5 | 54 | 0/27 | 2/7 | 3/7 | 3/5 | Feces, dust, and egg belt: S. Oranienburg |
| 6 | 58 | 1/30 | 5/7 | 5/7 | 1/5 | Feces, dust, egg belt, and eggshells: S. Oranienburg |
| 7 | 62 | 10/34 | 5/7 | 6/7 | 5/5 | Feces, dust, and egg belt: S. Oranienburg; eggshells: S. Oranienburg (10), S. Typhimurium PT 9 (1) |
| 8 | 66 | 8/33 | 6/7 | 7/7 | 5/5 | Eggshells, feces, and egg belt: S. Oranienburg; dust: S. Oranienburg (5), S. Agona (1) |
| 9 | 70 | 0/1 | 2/7 | 6/7 | 5/5 | Feces, dust, and egg belt: S. Oranienburg |
| 10 | 74 | 0/4 | 2/7 | 6/7 | 5/5 | Feces: S. Oranienburg (1), S. Typhimurium PT 9 (1); egg belt: S. Oranienburg (5), S. Typhimurium PT 9 (2); dust: S. Oranienburg (5), Salmonella subsp. 1 serovar rough: g,s,t:- |
a
PT, phage type.