The TWiM team explore how Lactobacillus reuteri can rescue social deficits in three mouse models of autism spectrum disorder, and the role of Salmonella persisters in undermining host defenses during antibiotic treatment.

The TWiM team considers the increasing tolerance of Enterococcus to handwash alcohols, and how the study of DNA in ancient dung reveals the diet and parasite burden of extinct New Zealand birds.

The cast of TWiM reveals how uropathogenic E. coli use a binding protein to treat copper as a nutrient or a toxin, and Antarctic soil bacteria that survive on trace atmospheric gases.