Gram Negative Spiral
About Yaws following is true except:
|A||Caused by Treponema pertenue.|
|B||Non-sexually transmitted disease.|
|C||Secondary yaws can involve bones and joints.|
|D||Last stages involve heart and nervous system.|
Treponemes and Associated Diseases
The genus Treponema includes T. pallidum subspecies pallidum, which causes venereal syphilis.
The etiologic agents of the endemic treponematoses are:
T. pallidum subspecies pertenue (yaws),
T. pallidum subspecies endemicum (endemic syphilis), and
There are two types of serologic test for syphilis: nontreponemal and treponemal. Both types of test are reactive in persons with any treponemal infection, including yaws, pinta, and endemic syphilis.
a. Gram negative spiral shaped bacteria of the family Spirochaetaceae.
b. Relapsing fever: epidemic RF: louse borne, B. recurrentis; strict human pathogen
c. Endemic RF: soft tick borne, B. duttoni, B. hermisii, B. parkeri, B. turicatae; several small mammals act as reservoirs.
d. Lyme’s disease: B. burgdorferi, hard tick borne, reservoir is rodents and deer