TWiM reveals a study showing that positive interactions among bacteria are far more common than previously thought, and how acquisition of a single gene enabled Yersinia pestis to expand the range of mammalian hosts that sustain flea-borne plague.

From the ASM Biodefense and Emerging Diseases Research meeting, Vincent speaks with Rebekah and Wyndham about their work on Rift Valley Fever virus and other vector-borne pathogens, and the evolution and pathogenesis of Yersinia pestis, the agent of plague.