Borrelia
Videos
Borrelia is a genus of bacteria of the spirochete phylum. Several species cause Lyme disease, also called Lyme borreliosis, a zoonotic, vector-borne disease transmitted by ticks. Other species of Borr
Borrelia burgdorferi cropped
Treponema pallidum
Videos
Treponema pallidum, formerly known as Spirochaeta pallida, is a microaerophilic, gram-negative, spirochaete bacterium with subspecies that cause the diseases syphilis, bejel, and yaws. It is known to
Borrelia
…Borrel (1867–1936), who first documented the distinction between a species of Borrelia anserina and the other known type of spirochete at the time, Treponema pallidum. This bacterium must be viewed using dark-field microscopy, which make the cells appear white against a dark background. Borrelia species are grown in…
Treponema pallidum
Electron micrograph image of T. pallidum cultured on epithelial cells of cotton-tail rabbits.
Electron micrograph image of T. pallidum, highlighted in gold.