Microbial genetics and biophysical analyses provide insight into an evolutionarily conserved bile salt receptor complex used by pathogenic bacteria to sense their environment.

A novel component of type III protein secretion systems involved in the assembly of the secretion machine is reported.

The basal body of the type-III secretion system of Yersinia enterocolitica within bacterial membranes shows elasticity and is longer than related isolated systems.

20 emerging issues in bioengineering that will have profound impacts on society have been identified.

A compendium of critical genomic numbers for viruses through the lenses of different viral classification systems.

Key numbers about the biology of the SARS-CoV-2 virus and the infection of a single human host by the virus have been compiled from the peer-reviewed literature.

A systems-level analysis of the biomedical workforce in the US shows that current strategies to enhance faculty diversity are unlikely to have a significant impact, and that there is a need to increase the number of PhDs from underrepresented minority backgrounds who move on to postdoctoral positions.

A text-mining study suggests that about half of the papers reporting the results of experiments on mice do not report the sex and age of the mice.