Obligate intracellular Nonculturabl Flashcards
Energy parasites/Obligate Intracellular, like gram-negative in a way that they have LPS as well in their cell wall
Chlamydia
Antigenic variations of Chlamydia spp is due to
MOMP (Major Outer Membrane Protein)
Metabolically Inert, Infective form, Inactive form of Chlamydia spp
Elementary body
Intracellular, Active Replicating form of Chlamydia spp
Reticulate body
C. trachomatis serovars for ocular trachoma
A, B, C
C. trachomatis serovar for Pelvic inflammatory disease
D to K
C. trachomatis - Lymphogranuloma venereum
Serovars L1, L2, L3
1 Non-Gonococcal urethritis, #1 STD in U.S., Trachoma and Inclusion Conjunctivitis agent, Fits-Hugh-Curtis syndrome
C. trachomatis
Best test for C. trachomatis
PCR/NAAT
Best media for C. trachomatis
McCoy Cell Line
Growth enhancer for C. trachomatis
Cycloheximide
C. trachomatis specimen collection
plastic/metal shafts of swab (Endocervix, Vaginal, Urethral)
Halberstadler-Prowazeik bodies - Glycogen-containing bodies
C. trachomatis
Stain for C. trachomatis
Lugol’s iodine
Test for Chlamydia antibody
Microimmunofluorescence
Bacteria associated with Psittacosis, Ornithosis, Parrot fever, Pneumonia (Hacking cough) from inhalation of bacteria in bird’s droppings/feces
C. psittaci
Sample of choice for C. psittaci
Sputum, NPS, OPS
Media for C. psittaci
Mice or chick embryo
Tests for C. psittaci
Microimmunofluorescence and PCR
Inclusion bodies seen in C. psittaci
Levinthal-Lillicole bodies - Non-Glycogen containing
Stain for C. psittaci
Macchiavello and Giemsa
Bacteria associated with TWAR strain, Taiwanese Acute Respiratory Syndrome, associated with asthma and atherosclerosis
Chlamydophila pneumoniae
Sample of choice for Chlamydophila pneumoniae
Sputum, NPS, OPS, bronchial wash
Media of choice for Chlamydophila pneumoniae
HeLa or Hep-2
Test of choice for Chlamydophila pneumoniae
Microimmunofluorescence and PCR
Stain of choice for C. pneumoniae
Giemsa
Bacteria associated with TWAR strain of pneumonia
Chlamydophila pneumoniae
Bacteria associated with currant jelly-like sputum
Klebsiella pneumoniae
Bacteria associated with rust-colored sputum, #1 community-acquired pneumonia
Streptococcus pneumoniae
Bacteria associated with Primary Atypical Pneumonia (PAP)
Mycoplasma pneumoniae
Bacteria associated with Broadstreet pneumonia
Legionella pneumophila
Bacteria with cell wall like a Gram-negative cell wall, Obligate intracellular, and non-cultivable in cell-free media
Rickettsia
Attachment to host cell of Rickettsia
OMP A and OMP B
Infection occurs after a bite of an infected arthropod vector
Rickettsia
Test for Rickettsia
NAAT (PCR) or Serology (e.g. Weil-Felix)
Spotted fever group of Rickettsia
R. africae, R. conorii, R. helionjiangesis, R. honei, R. japonica, R. rickettsi, R. parkeri, R. sibirica, R. slovaca
Typhus group of Rickettsia
R. prowazekii, R. typhi
Scrub typhus group
Orientia tsutsugamushi
Causative agent of African tick bite fever
R. africae
Causative agent of Mediterranean/Israeli/Boutonneuse spotted fever; Indian/Kenya tick typhus
R. conorii
Causative agent of Far-Eastern tick-borne rickettsiosis
R. helionjiangesis
Causative agent of Flinders Island spotted fever
R. honei
Causative agent of Japanese spotted fever
R. japonica
Causative agent of Rocky Mountain spotted fever
R. rickettsi
Causative agent of Mild illness of spotted fever group
R. parkeri
Causative agent of North Asia tick typhus
R. sibirica
Causative agent of Tick-borne lymphadenopathy
R. slovaca
Vector of spotted fever group
Ticks
Causative agent of Epidemic typhus and Brill-Zinsser disease (Recrudescent disease)
R. prowazekii
Vector of R. prowazekii
Lice
Causative agent of murine typhus
R. typhi
Vector of R. typhi
Fleas
Scrub typhus causative agent
Orientia tsutsugamushi
Scrub typhus vector
Chiggers
Causative agent of Human MONOCYTIC ehrlichiosis
Ehrlichia chaffeensis
Causative agent of Human GRANULOCYTIC anaplasmosis
Anaplasma
Vectors of E. chaffeensis
Ticks (Ambylomma spp., Lone star tick)
Vector of Anaplasma
Ticks (Ixodes spp.)
Causative agent of sennetsu fever
Neorickettsia sennetsu
Neorickettsia sennetsu vector
Ticks
Gram negative coccobacillus which causes Q (Query) fever and can be Isolated from animals
Coxiella burnetti
Survives extracellularly and can only be grown in lung cells
Coxiella burnetti
Coxiella burnetti highly infectious - Phase
Phase I (Large cell variant)
Phase II of C. burnetti
Acting like a spore, extracellular (in the environment), Zoonotic infection with cattle, sheep, & goats
Biosafety level for C. burnetti
Level 3
Tests for C. burnetti
Shell vial culture using Human lung fibroblast, Serology - most common diagnostic tool, IFA - Reference method, PCR - more sensitive than serology
General characteristics: Long, slender, helically curved microaerophilic organism
Spirochetes
Platelet-like structure in the cell wall in which fibrils are attached in spirochetes
Insertion disks
Flagella-like organelles wrapped around the bacterial cell wall
Axial fibrils/Axial filaments/Endoflagella
Tight coiled bacteria
Treponema
Thicker loose coil bacteria
Borrelia
Thicker, Loose coil, Hooked ends (question mark appearance)
Leptospira
Comma-shaped/Helical, Tapered ends with 4 flagella on each end
Brachyspira (causes fecal, oral, ulcer abscess)
Hutchinson’s triad
Deafness, Blindness, Notched peg-shaped teeth
Congenital syphilis causative agent
T. pallidum subs. pallidum
Spx for T. pallidum subs. pallidum in congenital syphilis
Blood or CSF
Test for T. pallidum subs. pallidum
X-ray, Immunologic test
Signs and symptoms associated with T. pallidum subs. pallidum
Hutchinson’s triad, Bone malformations: Bulldog maxilla, Saber shin (tibia)
Primary syphilis signs and symptoms
Hunterian chancre/Hard Chancre in genitals
Spx for primary syphilis
Lesion, Swab/Aspirate
Test for primary syphilis
Dark-Field microscope, Culture
Condylomata lata rashes in palms and soles stage of syphilis
Secondary stage
Spx for secondary syphilis
Lesion aspirate, Serum
Test for secondary syphilis
Serology
Latent syphilis signs and symptoms
Not evident
Spx of choice for latent syphilis
Serum
Latent syphilis test
Serology
Tertiary syphilis signs and symptoms
Tissue-destruction; Granuloma-like lesions (Gummas). Cardiac and CNS problems, Neurosyphilis
Specimen for tertiary syphilis
Lesion, Blood, CSF, Serum, Tissues
Test for tertiary syphilis
Serology, PCR – Neurosyphilis in AIDS patient
Relapsing fever causative agent
Borrelia spp
Stained blood smear for B. burgdorferi
Giemsa stained
1st week of infection with Leptospirosis spx
Blood and CSF
2nd week of infection with Leptospirosis spx
Urine
Culture media for leptospirosis
Fletcher, Noguchi, EMJH media
Gold standard for leptospirosis
Microscopic agglutination (MIT/MAT)
Lyme’s disease blood stain used
Acridine orange or Giemsa
Biopsy stain for Lyme’s disease
Warthin-Starry stain
Spx for Lyme’s disease
Blood, biopsy, CSF, urine
Culture for Lyme’s disease
Chick embryo, Barbour-Stoenner-Kelly media
Confirmatory for Lyme’s disease
Western blot
Lyme’s disease causative agent
B. burgdorferi
Treponema pallidum subsp. pallidum
Syphilis
Treponema pallidum subsp. pertenue
Yaws or Fambresia tropica
Treponema pallidum subsp. endemicum
Bejel or Endemic Non-venereal syphilis
Treponema carateum
Pinta or Carate
Treponema denticola and Treponema socranski
Gingivitis, Periodontitis
Borrelia recurrentis
Louse-borne/Epidemic/European relapsing fever
Borrelia hermsii, B. turicatae, B. duttoni, B. parkeri
Tick-borne/Endemic/American relapsing fever
Borrelia burgdorferi
Lyme’s disease
Leptospira interrogans
Leptospirosis / Infectious Jaundice / Weil’s disease
Stages of Lyme’s disease - First stage
Bull’s eye rash (erythema chronicum migrans), fever, malaise, joint pain
Stages of Lyme’s disease - Second stage
Neurologic disorders (nerve palsy), meningitis
Stages of Lyme’s disease - Third stage
Acrodermatitis chronica atrophicans (recurring chronic arthritis), Demyelination symptoms of Alzheimer’s disease and Multiple sclerosis