SPIROCHETES Flashcards
(25 cards)
how do spirochetes differ from other bacteria in terms of cell wall
flexible and have several wound fibrils
in contrast with both treponema and borrelia organisms, the spirals are _____
very close together so the organism may appear to be a chain of cocci
zoonotic ________ contaminate water or mud when shed in the urine of infected animals and often enter the human host through small breaks in the skin or intact mucosa
leptospirales
causative agent of Lyme borreliosis
borrelia
relapsing fever is characterized by acute febrile episodes that subside spontaneously but tend to recur over a period of weeks
borrelia recurrentis
endemic relapsing fever
tickborne
epidemic relapsing fever
louseborne
causative agent of yaw
T pallidu subsp. pertenue
causative agent of pinta
treponema carateum
causative agent of endemic syphilis
Treponema pallidum subsp. endemicum
causative agent of syphilis
Treponema pallidum subsp. pallidum
known as the great imitator, explain why
syphilis
it has a wide variety of clinical manifestations
after incoculation, the spirochetes multiply rapidly and disseminate to local lumph nodes and other organs via blood stream, what stage of syphilis is this
primary
the lesion of syphilis is called as
hard chancre
generalized lumphadenopathy,
rashes
what stage of syphilis is this
secondary
all lesions of the skin and mucous membranes are highly infectios
what stage of syphilis is this
secondary
relapses of secondary syphilis occur in about % of untreated patients
25%
latent syphilis
what stage of syphilis is this
tertiary stage
latency within 1 yr of infection of syphilis is referred to as
early latent syphilis
latency after 1 yr of infection of syphilis is referred to as
late latent syphiis
development of granulomatous lesions called gummas in skin, bones, and the liver
what stage of syphilis is this
tertiary
patients in this stage are usually not infectious
what stage of syphilis is this
3rd
2 non treponemal tests widely used today are
VDRL and RPR
venereal diseae research laboratory
rapid plasma reagin