A Kermack-McKendrick model applied to an infectious disease in a natural population.
The dynamics of a fatal infectious disease in a population regulated by density-dependent constraints are represented as a system of nonlinear integral equations. Survival probabilities and disease transmission coefficients may vary with the time elapsed since infection, and horizontal and vertical modes of transmission are allowed for. Criteria for the existence and stability of steady states are derived, and an example based on the dynamics of tuberculosis is presented. Finally, the relative merits of this approach, and the familiar compartmental models based on differential equations are discussed.
Roberts
M G
MG
AgResearch, Wallaceville Animal Research Centre, Upper Hutt, New Zealand.
D003141:Communicable Diseases / Q000453:epidemiology* / Q000401:mortality / Q000635:transmission; D018562:Disease Transmission, Infectious; D004812:Epidemiologic Methods; D006801:Humans; D018445:Infectious Disease Transmission, Vertical; D008433:Mathematics; D015233:Models, Statistical; D011336:Probability; D015996:Survival Rate; D013997:Time Factors; D014376:Tuberculosis / Q000453:epidemiology / Q000635:transmission