|Recent studies of surface waters have revealed large reservoirs of
freshwater bacteria resistant to one or more antibiotics. Since
these waterways, are multiple-use resources, including sources of
drinking water, these discoveries are matters of public health
interest. Concern over the spread of antibiotic resistant bacteria
lead to the formation of the National Antimicrobial Resistance
Monitoring System (NARMS) in the USA. However, this group does not
monitor antimicrobial resistance in surface waters.
Inspired by data collected from water samples from the Mud and Ohio
Rivers, we have developed a dynamical model for bacteria in the
river that includes both antibiotic resistant and non-antibiotic
resistant bacteria. Because of the strong correlation between the
land use along the river and levels of antibiotic resistant bacteria, we have
included a function that describes the influx of bacteria from the
shore. In this talk we will report the latest results of our study.