Table 1.
Herd specific data and sampling information.
| Herd Specific Data | Herd I | Herd II | Herd III | Herd IV | ||||
|---|---|---|---|---|---|---|---|---|
| State | Thuringia | Saxony-Anhalt | Saxony | Brandenburg | ||||
| Total number of animals (107) | 55 | 31 | 16 | 5 | ||||
| Gender distribution | ||||||||
| Male (37) | 16 | 9 | 10 | 2 | ||||
| Female (70) | 39 | 22 | 6 | 3 | ||||
| Age distribution | ||||||||
| <1 year (26) | 17 | 6 | 1 | 2 | ||||
| 1–10 years (73) | 38 | 23 | 10 | 2 | ||||
| >10 years (8) | 0 | 2 | 5 | 1 | ||||
| Flocks | 8 | 5 | 3 | 1 | ||||
| Husbandry system | Open stabling (perennial) | Pasture feeding (summer), open stabling (winter) | Open stabling (perennial) | Open stabling (perennial) | ||||
| Sampling * | ||||||||
| Total number of animals (103) ** | 54 | 30 | 15 | 4 | ||||
| Time interval after index Case (in days) | 31 | 9 | 50 | 42 | ||||
| Day of examination (***) | 1 | 2 (50) | 1 | 2 (54) | 1 | 2 (19) | 1 | 2 (28) |
| Clinical examination | x (15) | x | x | - | x | x | x | x |
| (Blood) serum | x (15) | x | x | x (4) | x | x | x | x |
| (Blood) EDTA | x (15) | x | x | - | x | - | x | - |
| (Blood) lithium-heparin | x (15) | x | x | - | x | - | x | - |
| Swab (conjunctival) | - | - | - | - | x | x | x | x |
| Swab (oral mucous membrane) | - | - | x | - | x | x | x | x |
| Swab (nasal mucous membrane) | - | - | - | - | x | x | x | x |
| Swab (other) | - | - | - | - | x (8) | x (11) | x (1) | x (3) |
| Crusts (skin lesions) | - | - | - | - | x (2) | x (3) | x (1) | x (1) |
| Feces | - | - | - | - | x | x | x | x |
* sampling includes two visits per alpaca herd after index case in clinic; ** 4 alpacas (index cases) not included; *** in brackets, time interval (in days) after first examination; x all alpacas of one herd sampled; x ( ) particular number of animals of one herd sampled; - not sampled. EDTA = ethylenediaminetetraacetic acid.