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VTPB 911
staining, environment, habitat, etc
| Question | Answer |
|---|---|
| Bacteroides | G- rod, non-spore-forming ob anaer; extracell hab: intestine, rumen, muc memb, env't/soil tissues with impaired blood supply (suppurative lesions/abscess, necrotic tissue), secondary pathogens |
| Leptospira | G- spiral; aer extracell fastidious, slow grower Urogenital tract, venereal trasmission (host-adapted serovar); brief carrier state (non-adapted); renal tubules shed in urine (urine-contaminated water sources, urine aerosols), milk, genital secretions |
| Borrelia | G- spiral; microaerophilic; extracell reservoir hosts tick transmission |
| Clostridium | G+ rod, anaer toxin! env'tal, endogenous endospore extracell (most) |
| Clostridium piliforme | G- rod endospore anaerobe ob intracell env't = infected animals trans: fecal-oral |
| Dichelobacter | G- rod, non-spore-forming ob anaer; extracell hab: intestine, rumen, muc memb, env't/soil, sheep feet tissues with impaired blood supply (suppurative lesions/abscess, necrotic tissue), 2ndary pathogens |
| Fusobacterium | G- rod, non-spore-forming ob anaer; extracell hab: intestine, rumen, muc memb, env't/soil tissues with impaired blood supply (suppurative lesions/abscess, necrotic tissue), secondary pathogens |
| Prevotella | G- rod, non-spore-forming ob anaer; extracell hab: intestine, rumen, muc memb, env't/soil tissues with impaired blood supply (suppurative lesions/abscess, necrotic tissue), secondary pathogens |
| Porphyromonas | G- rod, non-spore-forming ob anaer; extracell hab: intestine, rumen, muc memb, env't/soil tissues with impaired blood supply (suppurative lesions/abscess, necrotic tissue), secondary pathogens |
| Mycoplasma | small genome/size no cell wall = gram un-stainable, pleomorph/filterable, resistant to penicillin/B-lactam, sensitive to env'tal factors fastidous microaerophil loc: cell surface hab: muc memb trans: inh, cont, vertical, fomite host/tissue specific |
| Ureaplasma | small genome/size no cell wall = gram un-stainable, pleomorph/filterable, resistant to penicillin/B-lactam, sensitive to env'tal factors fastidous microaerophil loc: cell surface hab: muc memb trans: inh, cont, vertical, fomite host/tissue specific |
| Hemotrophic mycoplasma | small no cell wall atm: noncultivable loc: RBC surface (erythrocytic parasite) trans: arthropod |
| Rickettsia | aer ob intra hab: endothelial cells trans: ticks host: ppl, dog; reservoir: sm mammals |
| Anaplasma | aer ob intra hab: phagocytic cells (phagocytophilum), RBC (marginale), platelets (platys) trans: tick |
| Ehrlichia | aer ob intra hab: phagocytic cells trans: tick parasite of leukocytes, esp monocyte/macrophage/neutrophil |
| Neorickettsia | aer ob intra hab: phagocytic cells trans: flukes, ing of fluke; enteric infection |
| Coxiella | aer ob intra hab: phagocytic cells trans: repro discharge, feces/urine/milk, tick; aerosol/ing/fomite/arthropod bite reservoir: RUMINANT/dog/cat/bird/reptile/fish/arthropod infective form = spore-like |
| Chlamydophila | G- coccobacilli aer ob intra hab: muc mumb, resp/intestintal/genital tract env't: survive in soil days, feces long time trans: dir cont, inh, ing |
| Microsporum | Dermatophyte; animals, humans trans: dir contact; indir contact (soil, fomite) |
| Trichophyton | Dermatophyte; animals, humans trans: dir contact; indir contact (soil, fomite) |
| Epidermophyton | Dermatophyte; humans only trans: dir contact; indir contact (soil, fomite) |
| Candida | yeast unicell reproduce by budding creamy, bacterial-like colonies on agar Trans/hab: commensal (*skin, muc mem, GIT, up resp, repro tract), ubiquitous, opportunistic zoonotic to immunocompromised disseminated infections - serious |
| Malassezia | yeast unicell repro:budding creamy, bact-like colonies(agar) Trans: commensal (skin,ear canals), ubiquitous, opp zoo to immunocomp disseminate infections=bad changes in microclimate-> overgrowth (humidity, wax, antibiotic/glucocort, allergic dermat |
| Geotrichum | yeast unicell reproduce by budding creamy, bacterial-like colonies on agar reptiles, amphibians Trans: commensal (skin, muc mem), ubiquitous, opportunistic zoonotic to immunocompromised disseminated infections - serious |
| Trichosporon | yeast unicell reproduce by budding creamy, bacterial-like colonies on agar skin infections in ppl, animals rarely cause other clin symp Trans: commensal (skin, muc mem), ubiquitous, opportunistic zoonotic to immunocomp disseminated infections - se |
| Sporothrix | subQ reservoir: soil, plant, ubiquitous opp trans: enter through skin rare/sporadic mostly get infected from cats |
| Blastomycosis (reservoir, transmission) | world-wide, endemic on OH, MO, TN, MS River valleys; soil & wood; association with animal feces (pigeon, chicken manure); transmission - inhalation, also percutaneous |
| Coccidioidomycosis (reservoir, transmission) | soil in arid/semi-arid regions of N/central/S america; US-CA, AZ, NM, TX, UT; survives indefinitely in alkaline soil, active growth in hot dry summer conditions; transmission - inhalation, primary cutaneous infections (previous trauma/wounds?) |
| Cryptococcosis neoformans | world-wide distribution, ubiquitous; soil, bird excreta (esp pigeon); high concentration of creatinine enhances growth; most cases - opportunistic infections |
| Cryptococcosis gattii | mainly tropical climates; also emerging in pacific northwest; decaying wood, especially eucalyptus trees; infections in people & animals with normal immune status |
Created by:
shelbell8389
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