Host-associated microbiomes are stable across most of the lifespan, but what drives late-life deterioration remains unclear. This Unsolved Mystery proposes interventions that restore immune surveillan...

Could the shape of phylogenetic trees contain hidden information? This study shows that the "backbone" shape of the phylogenetic tree of the important human pathogen Klebsiella pneumoniae may reveal a...

Are quantitative traits important for bacteriology? The quantitative trait models used in animal and plant genetics assume that the trait takes continuous values and is influenced by many variants cir...