Table 3 Published estimates of length of time (in days) of phases of the SELIRS model for footrot infection
Phase (parameter) Trait definition | Length (days) | Source |
|---|---|---|
Latency (ν) | ||
Positive for D. nodosus | 4 | [16] |
Positive for D. nodosus | 5, 6 | [17] |
Signs of early footrot | 8, 9 | [16] |
Typical signs of early footrot | 7 | [17] |
Footrot observed in 13 out of 16 sheep | < 10 | [18] |
Footrot | 10–14 | [19] |
Bacterial survival (χ = μ + ωN) | ||
Bacterial survival | ≤ 14 | [20] |
Bacterial survival to the extent they are still infectious | ≤ 7 days | [20] |
Bacterial survival | < a few days | [21] |
Bacterial survival | ≤ 4 | [22] |
Required resting period of pasture to avoid infection | 7 | [19] |
Duration of infection (γ) | ||
Mean (may include re-infection) | 190–208 | [23] |
Mean (may include re-infection) | 21–77 | [24] |
With prompt treatment | 1 | |
Duration of immunity after recovery (λ) | ||
Since start of treatment (and cured after 0–21 days) | 26–31 | [16] |
Re-infection | < 63 | [11] |