Gani, JosephSwift, R.J.2015-12-071369-1473http://hdl.handle.net/1885/18627This paper considers approximations to carrier-borne epidemic processes, including when the immigration of carriers or susceptibles is allowed. The partial differential equations for the probability generating functions of the approximating processes areKeywords: Carriers; Immigration; Modified carrier-borne processes; Probability generating function; Susceptibles200810.1111/j.1467-842X.2008.00505.x2015-12-07