TWiM reveals that methane-producing bacteria might survive beneath the surface of Mars, and identification of a cytopathogenic toxin in a bacterium associated with preterm birth.

The TWiM team discuses saliva as more sensitive for SARS-CoV-2 detection in COVID-19 patients than nasopharyngeal swab and how Mycobacterium tuberculosis sulfolipid-1 activates nociceptive neurons and induces cough.

Vincent, Elio and Michael discuss the stability of human coronaviruses on surfaces and in aerosols, and peptidoglycan production by a mosaic consisting of a bacterium within a bacterium within an insect.