A Probabilistic Transmission Model for the Spread of Extended ‐Spectrum‐β‐Lactamase and AmpC‐β‐Lactamase‐Producing Escherichia Coli in the Broiler Production Chain

The objective of this work is to design a mathematical transmission model describing the effects of vertical and horizontal bacterial transmission in the broiler production chain, from the parent generation to the slaughterhouse level. To achieve this objective, an exi sting transmission model forCampylobacter was adapted for the case ofE. coli. The model keeps track of prevalence among flocks (flock prevalence) and of prevalence among animals within one flock (animal prevalence). Flock and animal prevalences show different dynamics in the model. While flock prevalence increases mainly through horizontal transmission in hatcheries, animal prevalence increases mainly at the broiler ‐fattening farm. Transports have rather small effects just as the vertical transmission from parents to chicks.
Source: Risk Analysis - Category: International Medicine & Public Health Authors: Tags: Original Research Article Source Type: research