Highly dynamic animal contact network and implications on disease transmission

Chen, Shi; White, Brad J.; Sanderson, Michael W.; Amrine, David E.; Ilany, Amiyaal; Lanzas, Cristina

Dynamic Contact Network. Degree distributions for the aggregated number of contacts at the pen level for the complete period of observation (192-h) were better characterized by a gamma distribution than a normal distribution, indicating that the degree distributions were skewed ( Supplementary Fig. 1) . A detailed description of the parameters and goodness of fit is provided in Table S1a . The degree distributions of hourly contact networks (during 2-3 am interval, shortened as 2 am thereafter; 8 am, 2 pm, and 8 pm hourly interval for pen #1) were better characterized by a normal distribution than a gamma distribution when the animals were more active (at 8 am, 2 pm, and 8 pm intervals), while the degree distribution fit better with a gamma distribution during 2 am, when the animals were inactive and the number of contacts was substantially lower than at other times of day and therefore the network was more sparse (Supplementary Table 1 , Supplementary Fig. 2) .