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Stochastic spread

When a new infectious disease enters a population everything depends on who catches it — superspreaders or people with few contacts who don't pass it on.  We investigate the stochastic nature of the early stages of an outbreak.

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Keeping track of immunity

Dengue fever does the opposite of what you might expect. Unlike for many diseases, if you've had this tropical virus and recovered, you might be worse off, as a second exposure to the dengue virus can be life threatening. So keeping track of the strains of the diseases is an important problem which can be solved with the help of a little randomness.
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Understanding influenza

Researchers have used mathematical modelling to understand the evolution of the influenza virus.
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