Borrelia burgdorferi one of the causative species of<unk><unk>  (borreliosis). Magnified 400 times.<unk><unk> , or borreliosis, is caused by spirochetal bacteria from the genus Borrelia, which has 52 known species. Three main species (Borrelia garinii, Borrelia afzelii, and Borrelia burgdorferi s.s.) are the main causative agents of the<unk>  in humans, while a number of others have been implicated as possibly pathogenic. Borrelia species in the species complex known to cause<unk><unk>  are collectively called Borrelia burgdorferi sensu lato (s.l.) not to be confused with the single species in that complex Borrelia burgdorferi sensu stricto which is responsible for nearly all cases of<unk><unk>  in North America. Borrelia are microaerophilic and slow-growing—the primary reason for the long delays when diagnosing<unk><unk> —and have been found to have greater strain diversity than previously estimated. The strains differ in clinical symptoms and/or presentation as well as geographic distribution. Except for Borrelia recurrentis (which causes louse-borne relapsing fever and is transmitted by the human body louse), all known species are believed to be transmitted by ticks.
Lyme disease microbiology
Herpes simplex research
PLOS Pathogens
Epidemiology of syphilis
Guatemala syphilis experiments
Virus counter
Tuberculosis diagnosis
Tuberculosis radiology