# A contact process with mutations on a tree

@article{Liggett2006ACP, title={A contact process with mutations on a tree}, author={T. Liggett and R. Schinazi and Jason Schweinsberg}, journal={Stochastic Processes and their Applications}, year={2006}, volume={118}, pages={319-332} }

Consider the following stochastic model for immune response. Each pathogen gives birth to a new pathogen at rate [lambda]. When a new pathogen is born, it has the same type as its parent with probability 1-r. With probability r, a mutation occurs, and the new pathogen has a different type from all previously observed pathogens. When a new type appears in the population, it survives for an exponential amount of time with mean 1, independently of all the other types. All pathogens of that type… Expand

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