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21 Cards in this Set
- Front
- Back
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Diff. in EB and RB?
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They are 2 different phases of life cycle of Chlamydia.
EB= small, induce endocytosis, haemogglutinin present, infectious, metab. inactive, adapted for extracell. survival RB= large, haemoglutinin absent, metab. active, non-infectious, adapted for intracellular growth, does not induce endocytosis. |
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Diseases of Burkholderia
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Glanders: B. mallei
-contagious equine disease -developes nodules and ulcers in resp. tract and on skin -Acute or chronic: respitory, cutaneus, nasal Melioidosis: B. pseudomallei - Develop absesses - Inhalation, ingestion, skin abrasion -Opportunistic- stress may cause outbreak -Resevoir: rodents |
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Virulence of E. coli
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Capsule, endotoxins, enterotoxins, fimbrial adhesions, adhesin: intimin, Alfa-haemolysin, iron-binding molecules
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Lab diagnosis of Pseudomonas aeruginosa
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Spc: pus, respiratory aspirates, urine, milk, ear swab
Blood agar, McConkey agar. Incub. 37 degrees 1-2 days Ident.: Colonial morphology, production of pigments and distinct odor, haemolytic on blood agar, oxidase positive |
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Bovine brucellosis
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Speciement: Aborted foetus, vaginal discharge, placenta, semen, tissue from testes
Transmission through ingestion of contaminated products, or licking calves/aborted foetuses. B. abortus When ingested: bact. enter lymph nodes freely or phagosome to avoid lysosome. |
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Bovine brucellosis: serological test
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Rose-bengal test:
1. complement fixation 2. rapid agglutination 3. presumption 4. indirect ELISA 5. immunoblotting technique 6. agar gel immunodiffusion test Milk ring test: Serum+ antigen, gives blue color if positive. |
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Diseases of Ehrichia
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E. canis: Canine monocytic ehrlichiosis
E. Ewangii: Canine granulocytic ehrlichiosis E. ruminantum: Heartwater |
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Diseases of Neorickettsia
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N. helminthoeca: Salmon-poisoning disease
N. Elokonimiton: Elokomin fluke fever N. risticii: PHF (Eq.) |
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Diseases of Anaplasma
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A. platys: EGE (eq), tick-borne fever (rum.)
A. marginale: Bovis anaplasmosis A. phagocytophilum: Canine cyclic thrombocytopenia |
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Common factor of borrelia and treponema
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Both helical, G-.
Not all have been cultured in vitro. |
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Virulence factors of bordetella bronchoseptica
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Adhesins: pertactin, fimbriae
Toxins: osteotoxins, tracheal cytotoxins, dermanecrotic toxins produce filamentous haemagglutinin |
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Lab diagnosis of Swine dysentery
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Brachyspira hyodysenteria
Spc: mucosal scraping from affected colon, rectal swabs, faeces Direct examination and bacteriological culture Field smear- G-stain (brighfield), Victoria blue-stain, silver impregnation TSA blood agar+ antibiotics, incub. 42 degree 3 days Haemolysis! Immunoflourecence, DNA probes, biochem. test Serological test, ex. ELISA PCR |
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Diseases caused by Chlamydophila
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EAE- C. abortus
Avian chlamydiosis- C. psitaci Feline chlamydiosis- C. felis Sporadic bovine encephalomyelitis- C. pecorum |
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What can Chlamydia trachomatis cause?
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Conjuctivitis, encephalitis, arthritis, enteritis, myocarditis, neonatal pneumonia, urethritis, trachoma
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Pathogenes of Chlamydiacea family
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Chlamydia; trachomatis, Chlamydophila; abortus, felis, psitaci, pecorum
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Moraxella; natural habitat
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respiratory tract, eyes and ears (?)
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Diseases caused by Campylobacter
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C. Jejuni: GBS, food infection
C. Coli: food infection C. fetus spp. veneralis: Bovine campylobacterius C. fetus spp. fetus: abortion and infertility in ruminants |
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Characteristics of Rickettsia
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G-, no flagella, rods- coccoid, Obligate intracellular parasite, very small, Spread by arthropods, pleomorphic: single, pair, strands, In cytoplasm or nuclei, multiply by binary fission inside host cell
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Domains of life and characterization of bact.
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3 domains- archea, bacteria (prokaryotes) and eukarya.
Phylogenic tree: distance and parasimony. Evolutionary history of cells of organisms. Root: point of ev. hist. when earth shared ancestor. Evolutionary distance is proportional to length of lines. |
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Helicobacter important in veterinary medicine
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H. hepatitis, bilis, canis, pullorum, mustelae
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Woese happy idea
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Sequencing of 16S rRNA genes of various organisms- to assess degree of genetic relatedness. 16S rRNA used as phylogenic tool.
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