Once an individual has been infected with a certain disease, let X represent the time (days) that elapses before the individual becomes infectious. The article "The Probability of Containment for Multitype Branching Process Models for Emerging Epidemics" (J. of Applied Probability, 2011: 173-188) proposes a Weibull distribution with aα= 2.2, ß= 1.1, and g 5 .5
