spirochaetes Flashcards
What is the feature of spirochaetes ?
large group of spiral motile Gram negative bacteria
mainly by sex, direct contact with lesions, blood transfusion
acquired Syphilis
Transplacental, (from mother to fetus)
congenital syphilis
Primary Syphilis:
highly infectious
Chancre: local, painless
Regional lymphadenopathy
Secondary Syphilis:
highly infectiuos
macular rash or warty lesions, condylomas
Tertiary Syphilis is characterized by ?
gummas (chronic granulomas)
What is the test of Syphilis Treponemas pallidum ?
Flocculation tests (VDRL test , Rapid Plasma Reagin (RPR) test)
What is the Treatment of Treponema pallidum ( Syphilis )
Benzathine penicillin
Treponema pallidum subspecies pertenue→ Yaws leads to ?
goundou , gangosa
proliferative exostoses of nose bone ?
goundou
particularly around nose ?
gangosa
depigmented, resembling vitiligo ?
Pinta
What is the vector and reservoir of Epidemic RF ?
Vector is Lice
reservoir) is human
Endemic RF:
Vector is Ticks
reservoir) is Rodents
The The relapses of Borrelia causing Relapsing Fever
are due ?
antigenic variations.
Specimen blood during febrile attack in ?
Borrelia causing Relapsing Fever
What is the stain of Borrelia causing Relapsing Fever ?
Giemsa’s stain: shows large spirochetes diagnosis
Borrelia vincentii ?
commensal in the mouth in few numbers.
Vincent’s angina is ?
mouth ulcers on the tonsils and the gum
Septicemic (acute) phase of Leptospira cause ?
fever, headache, conjunctival suffusion.
Delayed phase of Leptospira cause ?
aseptic meningitis.
Icteric leptospirosis(Weil’s disease) of Leptospira leads to ?
multiorgan dysfunction
Treatment of Leptospira ?
Penicillin G
What is the feature of ACTINOMYCETES ?
Gram-positive branching bacilli , anaerobic
