Control of transmission with two types of infection.
The effectiveness of a vaccination strategy to control transmission of an infectious disease depends on the way vaccine doses are distributed to individuals in a community of households. Here we show that this dependence is more complicated when acquisition and severity of illness are determined by the size of the infecting dose, as is thought to be the case for measles and varicella. Two alternative formulations for the way vaccination changes an individual's susceptibility and infectivity show that vaccination coverage, the nature of the vaccine response and the distribution of household size also have a big impact on which strategy is more effective. These judgements are made by comparing the post-vaccination reproduction numbers corresponding to different vaccination strategies.
School of Mathematical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK. frank.ball@nottingham.ac.uk
Frank
F
Ball
Niels G
NG
Becker
D003141:Communicable Diseases / Q000276:immunology* / Q000635:transmission*; D018562:Disease Transmission, Infectious / Q000517:prevention & control*; D005191:Family Characteristics; D006801:Humans; D017053:Infection Control / Q000379:methods; D018448:Models, Immunological; D014611:Vaccination / Q000379:methods*; D014612:Vaccines / Q000008:administration & dosage*
D014612:Vaccines