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Full-Text Articles in Medicine and Health Sciences
Introduction Infectious Disease Modeling, Cristina Lanzas
Introduction Infectious Disease Modeling, Cristina Lanzas
Cristina Lanzas
No abstract provided.
Investigating Effects Of Between- And Within- Host Variability On Escherichia Coli O157 Shedding Pattern And Transmission, Shi Chen, Mike Sanderson, Cristina Lanzas
Investigating Effects Of Between- And Within- Host Variability On Escherichia Coli O157 Shedding Pattern And Transmission, Shi Chen, Mike Sanderson, Cristina Lanzas
Cristina Lanzas
Healthy cattle and their environment are the reservoir for the human pathogen Escherichia coli O157. In E. coli O157 epidemiology, supershedders have been loosely defined as cattle that shed high concentrations of E. coli O157 (≥104 colony-forming cells (CFU)/g of feces) at a single (or multiple) cross-section in time. Due to the variability in the pathogen shedding level among animals (between-host variability), as well as fluctuations in the level shed by a single animal (within-host variability), it is difficult to interpret fecal bacteria distributions, as well as to parse the relative contribution of between- and within-host variability to the observed …
Model Or Meal? Farm Animal Populations As Models For Infectious Diseases Of Humans, Cristina Lanzas, P Ayscue, R Ivanek, Y T. Grohn
Model Or Meal? Farm Animal Populations As Models For Infectious Diseases Of Humans, Cristina Lanzas, P Ayscue, R Ivanek, Y T. Grohn
Cristina Lanzas
In recent decades, theory addressing the processes that underlie the dynamics of infectious diseases has progressed considerably. Unfortunately, the availability of empirical data to evaluate these theories has not grown at the same pace. Although laboratory animals have been widely used as models at the organism level, they have been less appropriate for addressing issues at the population level. However, farm animal populations can provide empirical models to study infectious diseases at the population level.