Transmission parameters estimated for Salmonella typhimurium in swine using susceptible-infectious-resistant models and a Bayesian approach

Table 1 Summary measures of the transmission parameters and random effects variances from the Salmonella transmission in pigs SIR model

Parameters	Mean	Standard deviation	Quartiles					Rhat
Parameters	Mean	Standard deviation	2,5%	25%	50%	75%	97,5%	Rhat
β	0.44	0.49	0.06	0.20	0.33	0.52	1.52	1.0021
α	0.18	0.02	0.14	0.17	0.18	0.20	0.23	1.0009
ν	0.02	0.03	0.0001	0.006	0.01	0.02	0.04	1.0009
$σ_{1}^{2}$	3.00	1.80	0.80	1.76	2.60	3.77	7.59	1.0011
$σ_{2}^{2}$	0.02	0.04	0.002	0.005	0.01	0.02	0.096	1.0009
$σ_{3}^{2}$	6.64	38.82	0.003	0.06	0.08	3.85	44.44	1.0010
pND	0.18	0.03	0.12	0.16	0.18	0.20	0.25
R ₀	2.20	1.25	0.78	1.46	1.91	2.56	5.24

Legend: β – transition rate from susceptible to infectious, α – transition rate from infectious to carrier, ν – transition rate from carrier to infectious, $σ_{1}^{2}$ – variance of the random effects for the transition from susceptible to infectious, $σ_{2}^{2}$ - variance of the random effects for the transition from infectious to carrier, $σ_{3}^{2}$ - variance of the random effects for the transition from carrier to infectious, pND – probability of non-detection of infectious animals, R₀ – basic reproduction ratio.

ISSN: 1746-6148