About 5,000 years ago, a bacterium that was primarily transmitted via ticks made a switch to louse. That may have been a ...

The discovery of Rickettsia sp. ME2023 is a key piece of a puzzle that scientists at the UMass Amherst-based New England Center of Excellence in Vector-borne Diseases (NEWVEC) are pondering.

Murine Typhus is caused by the flea-borne bacteria Rickettsia typhi ... Additionally, transmission can occur through exposure of mucous membranes to infected flea feces. Notably, Murine Typhus ...

He found that 6.1% of 296 rabbit ticks collected from 38 towns across nine counties in Maine tested positive for the new Rickettsia genotype. “This wasn’t a needle in a haystack,” Rich says.