Pugliese A
Dipartimento Matematica, Università di Trento, Povo, Ilaly.
J Math Biol. 1990;28(1):65-82. doi: 10.1007/BF00171519.
An S----I epidemic model with a general shape of density-dependent mortality and incidence rate is studied. The asymptotic behaviour is global convergence to an endemic equilibrium, above a threshold, and to a disease-free equilibrium, below the threshold. The effect of vaccination is then examined.
