Researchers have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it gained ...

The bacteria that cause tuberculosis (TB) may have an "on-off switch" that lets them pause and restart growth, according to a ...

Paraneoplastic syndrome represents a major systemic complication in cancer patients but its causes remain unclear. This study ...