Act 14 Spiral Bacteria Flint N Steel Flashcards
Family of spiral bacteria (spirochetes)
Spirochaetaceae
Genus of spiral bacteria
Trepanoma
Are all spiral bacteria gram negative?
Yur
Stain of a histologic section of placenta from a patient with congenital syphilis. The tight spiral coils of the spirochete are clearly evident
Warthin-Starry stain
What is the Wasserman test for
- antibody test for syphilis
- detects trepanoma organisms
- (+) reaction indicates the presence of antibodies
What does TPI test stand for
Trepanoma pallidum immobilization test
What is TPI for
- test for syphilis in which an antibody is present in the serum of a patient
- the presence of complement causes the immobilization of Trepanoma pallidum
What does VDRL test stand for
Venereal Disease Research Laboratory test
What is VDRL test for
- a serological **non treponemal antigen test* since they do not detect antibodies produced against the spirochete itself but detects reagin-type of antibodies
Morphology of borrelia burgdorferi
Gram (-), spirochete in corkscrew shape
In clusters or singles
Special structure of Borrelia burgdorferi
Axial filament
This stain demonstrates borellia spp. dramatically, more sensitive than Giemsa or Wright’s stains.
Acridine orange stain
Family of spirillum bacteria
Spirillaceae
What stain is used for spirochetes?
Will aniline dyes
What stain is used for spirillum
Giemsa or Wright stain
Morphology of Vibrio comma/cholerae
Gram (-), vibrio of comma shaped in singles
Specialized structure of vibrio comma
Flagella
Morphology of Spirillum volutans
Gram (-) , spirilla in singles or in pairs
Specialized structure of Spirillum volutans
Flagella
