In this study, a stochastic discrete-time model is developed to study the spread of an infectious disease in an n-patch environment. The model includes an arbitrary distribution of the (random) infectious period T, and the results are used to investigate how the distribution of T may influence the model outcomes. General results are applied to specific distributions including Geometric, Negativ...

The duration of the infectious period is crucial in determining the ability of an infectious disease to spread. We consider an epidemic model that is network-based and non-Markovian, containing classic KermackMcKendrick, pairwise, message passing and spatial models as special cases. For this model, we prove a monotonic relationship between the variability of the infectious period (with fixed me...

1. Serum and stools obtained in the pre-icteric phase of one patient, and pooled specimens of the same materials from 5 patients with experimentally induced (by feeding) infectious hepatitis produced the disease in 10 out of 15 human volunteers following feeding or parenteral inoculation. 2. Pooled specimens of urine and nasopharyngeal washings from 5 patients, obtained in the acute phase of in...