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where for instance a vector carries a pathogen or parasite between hosts. It is represented by β and it is the rate at which a pathogen moves from infected individuals to
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McCallum, Hamish; Fenton, Andy; Hudson, Peter J.; Lee, Brian; Levick, Beth; Norman, Rachel; Perkins, Sarah E.; Viney, Mark; Wilson, Anthony J.; Lello, Joanne (2017).
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Philosophical
Transactions of the Royal Society B: Biological Sciences
121:"Non-linear transmission rates and the dynamics of infectious disease"
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173:"Breaking beta: deconstructing the parasite transmission function"
96:{\displaystyle {\frac {dY}{dt}}={\frac {\beta XY}{N}}-\gamma Y}
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224:"Population biology of infectious diseases: Part I"
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222:Anderson, R.M.; May, R.M. (1979).
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150:10.1016/S0022-5193(05)80572-7
119:Hochberg, Michael E. (1991).
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286:Basic reproduction number
20:is needed for models of
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191:10.1098/rstb.2016.0084
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245:1979Natur.280..361A
142:1991JThBi.153..301H
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239:(5721): 361–367.
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