Table 3 Contribution rate of potentially contaminating vehicle movement and other sources of HPAI H5N6 infection at infected premises that belong to each phylogenetic cluster.

From: Dynamics of inter-farm transmission of highly pathogenic avian influenza H5N6 integrating vehicle movements and phylogenetic information

Parameter

HPAI H5N6 genotype cluster

C2

(no. of IPs = 81)

C3

(no. of IPs = 41)

C4

(no. of IPs = 114)

C5

(no. of IPs = 23)

Proportion of transmission route (%)

 Vehicle movement

23.5%

31.7%

46.0%

11.8%

 Other sources

76.5%

68.3%

54.0%

88.2%

Interval between infection and reporting (days)

5.89

(1.01, 12.87)

5.90

(1.00, 12.88)

5.98

(1.00, 12.94)

5.87

(1.00, 12.85)

Duration of vehicle infectious (days)§

3

1

3

3

 No. of vehicles

317

125

326

123

 No. of vehicle movements

2,173

523

2,958

913

 Between IPs

230

130

529

13

 IPs to non-IPs

1,943

393

2,429

900

  1. With the force of infection was calculated based on the posterior marginal distributions of each parameter, the proportion of potential route of transmission contributing to HPAI H5N6 infection in IPs that belong to a specific phylogenetic cluster was obtained by simulating a binomial trial with two possible outcomes (e.g., vehicle movement and other sources of infection) to compute.
  2. The distribution was obtained by simulating values from the Gamma distribution, based on parameters α and β randomly sampled from their joint distribution.
  3. Based on DIC value, the preferred model between one day and three-day infectious duration for vehicle movements originating from a specific genotype of IPs was selected.
  4. HPAI highly pathogenic avian influenza, IPs infected premises, DIC deviance information criterion.
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