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Table 6 Effect of seed premises on outbreak size.

From: The potential spread of highly pathogenic avian influenza virus via dynamic contacts between poultry premises in Great Britain

Seed premises size

Number unique premises in small epidemics (seed)

Number unique premises in large epidemics (seed)

Proportion outbreaks resulting in large epidemics

Small (≤ 100,000 birds)

35

20

0.57

Medium (100,000 - 200,000 birds)

59

17

0.29

Large (> 200,000 birds)

141

37

0.26

  1. The proportion of outbreaks that result in large/small epidemics for different size categories of seed premises.