Damon J. A. Toth

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Influenza poses a significant health threat to children, and schools may play a critical role in community outbreaks. Mathematical outbreak models require assumptions about contact rates and patterns among students, but the level of temporal granularity required to produce reliable results is unclear. We collected objective contact data from students aged(More)
Anthrax poses a community health risk due to accidental or intentional aerosol release. Reliable quantitative dose-response analyses are required to estimate the magnitude and timeline of potential consequences and the effect of public health intervention strategies under specific scenarios. Analyses of available data from exposures and infections of humans(More)
A group of 116 elementary and junior high school educators were asked to list terms descriptive of children with articulatory disorders. A list of 20 terms was established and then rated for desirability-undesirability by 100 college students. A majority of the terms were negative in nature and were given undesirable ratings. The results suggest that many(More)
Estimates of contact among children, used for infectious disease transmission models and understanding social patterns, historically rely on self-report logs. Recently, wireless sensor technology has enabled objective measurement of proximal contact and comparison of data from the two methods. These are mostly small-scale studies, and knowledge gaps remain(More)
reproduction in any medium, provided the original work is properly cited. Objective To enhance public health surveillance and response for acute respiratory infectious diseases by understanding social contacts among school-aged children Introduction Timely and effective public health decision-making for control and prevention of acute respiratory infectious(More)
We model a chemostat containing an age-structured predator and its prey using a linear function for the uptake of substrate by the prey and two different functional responses (linear and Monod) for the consumption of prey by the predator. Limit cycles (LCs) caused by the predator's age structure arise at Hopf bifurcations at low values of the chemostat(More)
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