Fragmentation of Bacterial Emboli and Biofilms in Flow Abstract: Klebsiella pneumoniae is one of the most common causes of intravascular catheter infections, potentially leading to life-threatening bacteremia. These bloodstream infections dramatically increase the mortality of illnesses and often serve as an engine for sepsis. Our current research considers models for both suspended emboli and sessile biofilms. In this talk I will focus on the progress of our investigation into properties of the the model equations for suspended bacterial emboli. In particular, I will focus on a) our evidence that a widely used post-fragmentation distribution is incorrect, b) accurate characterization of the fractal properties for the aggregates, and (time permitting) c) self-similar solutions to the equations. Lastly, I will briefly discuss the connections with our other project on biofilm separation.