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. 2018 Jun 4;8:8533. doi: 10.1038/s41598-018-26954-9

Table 2.

Ability and timeliness of mortality and egg production thresholds to signal highly and low pathogenic avian influenza outbreaks.

HPAI LPAI
No. detected/No. tested (%) Days earlier detection (range) No. detected/No. tested (%) Days earlier detection (range)
Mortality
   CUSUM 5/7 (71.4) 2 (0–6) 8/9 (89.0) 6 (0–89)
   Ratio >2.9 5/7 (71.4) 2 (0–6) 7/9 (77.8) 7 (3–89)
   Mortality % >0.08/0.13 5/7 (71.4) 2 (0–5) 6/9 (66.7) 5 (3–89)
   Mortality % >0.25% (2 day) 3/7 (43.0) 0 (0–1) 0/9 (0.0)
   Mortality % >0.5% (2 day) 3/7 (43.0) 0 (0–1) 0/9 (0.0)
   Mortality % >0.25% (1 day) 6/7 (85.7) 0 (0–2) 0/9 (0.0)
Mortality % >0.5% (1 day) 5/7 (71.4) 0 (0–2) 0/9 (0.0)
Egg production
   CUSUM 1/6 (16.7) 0 3/6 (50.0) 6 (2–6)
   Ratio <0.94 2/6 (33.3) 0 (0–1) 4/6 (66.7) 6 (1–7)

Data from recent outbreaks (2012–2016) were used for this analysis.