Journal ArticleDOI
Population biology of infectious diseases: Part II
Robert M. May,Roy M. Anderson +1 more
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TLDR
Consideration is given to the relation between the ecology and evolution of the transmission processes and the overall dynamics, and to the mechanisms that can produce cyclic patterns, or multiple stable states, in the levels of infection in the host population.Abstract:
If the host population is taken to be a dynamic variable (rather than constant, as conventionally assumed), a wider understanding of the population biology of infectious diseases emerges. In this first part of a two-part article, mathematical models are developed, shown to fit data from laboratory experiments, and used to explore the evolutionary relations among transmission parameters. In the second part of the article, to be published in next week's issue, the models are extended to include indirectly transmitted infections, and the general implications for infectious diseases are considered.read more
Citations
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Journal ArticleDOI
Understanding the persistence of measles: reconciling theory, simulation and observation
TL;DR: A deterministic approach is used to parameterize a variety of models to fit the observed biennial attractor, thus determining the level of seasonality by the choice of model, and considers the differences between the observed fade–out pattern and the more theoretically appealing ‘first passage time’.
Book ChapterDOI
Life histories and parasite pressure across the major groups of social insects.
TL;DR: Several recent studies have questioned the generality of the assertion that rates of parasitism tend to be positively correlated with group size, but data has been provided to show that social behaviour can also be associated with reduced parasite load.
Journal ArticleDOI
Ecology of zoonotic infectious diseases in bats: current knowledge and future directions
David T. S. Hayman,Richard A. Bowen,Paul M. Cryan,Gary F. McCracken,Thomas J. O'Shea,Alison J. Peel,Alison J. Peel,Amy T. Gilbert,Colleen T. Webb,James L. N. Wood +9 more
TL;DR: Key questions relating to the ecology of infectious diseases in bats are identified and it is proposed that a combination of field and laboratory studies are needed to create data‐driven mechanistic models to elucidate those aspects of bat ecology that are most critical to the dynamics of emerging bat viruses.
Journal ArticleDOI
Global stability of a SIR epidemic model with nonlinear incidence rate and time delay
TL;DR: In this paper, a SIR epidemic model with nonlinear incidence rate and time delay is investigated, and the local stability of an endemic equilibrium and a disease free equilibrium is discussed.
Journal ArticleDOI
The importance of multiparasitism: examining the consequences of co-infections for human and animal health.
TL;DR: The goal of this review is to summarise current knowledge on the causes and consequences of multiparasitism and to discuss the different methods and tools that researchers have developed to study the factors that lead to multiparAsitism.
References
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Journal ArticleDOI
A contribution to the mathematical theory of epidemics
TL;DR: In this article, the authors considered the problem of finding a causal factor which appears to be adequate to account for the magnitude of the frequent epidemics of disease which visit almost every population.
A Contribution to the Mathematical Theory of Epidemics.
TL;DR: The present communication discussion will be limited to the case in which all members of the community are initially equally susceptible to the disease, and it will be further assumed that complete immunity is conferred by a single infection.