Microbiology Cards – Flashcards
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| Syphilis-agent |
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| Treponema pallidum |
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| Syphilis-Invasion |
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| Penetrates mucous membranes Wounds/Hair follicles |
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| Syphilis Transmission |
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| Sex congenital |
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| Syphilis Characteristics |
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| Primary-chancre Secondary-Fever,jaundice Tertiary-gummas, to brain |
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| Syphilis Test |
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| VRDL (venereal disease research lab) check for antibodies |
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| Syphilis Treatment |
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| penicillin (even though g-) to affect protein synthesis |
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| Syphilis-how much reported |
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| one of the most reported |
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| Gonorrhea-agent |
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| Neisseria gonorrheae (g-) |
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| Gonorrhea Invasion |
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| Wounds Attachment with pili to epithelial cells |
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| Gonorrhea Transmission |
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| Sex fluid contact because very fragile diplococcus passed to infants |
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| Gonorrhea Characteristics |
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| Discharge, burning, itching, sterility |
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| Infant Gonorrhea |
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| gonococcal opthalmia can lead to blindness treat with Silver Nitrate |
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| Chlamydial urethritis-agent |
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| Chlamydia tracomatis (small intracell. parasite) abnormal cell wall |
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| Chlamydia urethritis invasion |
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| Wounds |
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| Chlamydia urethritis transmission |
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| Sex |
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| Chlamydia Characteristics |
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| 80-90% nonsymptomatic discharge as gonorrhea |
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| Chlamydia in infants |
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| Chlamydial opthalmia and pneumonia |
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| Chlamydia Treatment |
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| Choroquinolones erythromycin Effect protein synth, and DNA gyrase |
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| Chancoid-Agent |
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| Haemophilus ducreyi (g-) rod |
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| Chancoid Invasion |
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| Wounds Contact with leisons Bacteria go to lymph |
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| Chancoid Transmission |
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| Sex Contact with leisons |
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| Chancoid Characteristics |
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| SOFT chancre endemic in developing countries |
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| Lymphogora nuloma/venereum-agent |
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| Chlamydia trachomatis (different serotype) |
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| Lymphogora nuloma venereum Transmission |
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| Sex |
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| Lymphogora nuloma venereum Characteristics |
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| Fever, swelling, to lymph |
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| Contact Bacterial Diseases |
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| Transmitted by skin contact |
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| Leprosy-agent |
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| Mycobacterium leprae (acid fast rod) heat sensitive |
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| Leprosy-invasion |
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| Obligate intracell. parasite grow inside macrophages |
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| Leprosy Transmission |
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| Skin contact, droplets |
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| Leprosy Characteristics |
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| Skin leisons Inside bone in superficial regions 95% population has natural immunity |
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| Leprosy Treat |
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| 2-3 antibiotics |
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| Leprosy Cultivation |
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| 9 banded armadillos hard to lab cultivate |
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| Abscess, boil Agent |
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| Stap aureus |
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| Abscess, boil Invasion |
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| Transient Normal flora can enter wounds and become pathogenic |
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| Abscess, boil Transmission |
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| Skin contact wounds, spread by food handlers to be food poisioning |
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| Abscess boil Characteristics |
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| skin lesions, pus filled pockets spread to blood and other organs septicemia can cause bone infection can produce exotoxin (enterotoxin) |
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| Abscess Impetigo |
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| More in children with low immune system |
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| Abscess resistance |
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| MRSA- methicilin resistant s.a. VISA- vancomycin resistamt s.a. |
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| TSS-agent |
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| Staph aureus strain that produces a toxin |
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| TSS invasion |
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| small wounds made with tampons production of a toxin |
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| TSS characteristics |
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| Sunburn-like rash, fever, coma |
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| Bacterial Conjunctivitis-agent |
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| Haemophilus influenza III (g-)rod |
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| Haemophilus influenzae III disease |
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| Pink eye |
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| Bacterial Conjunctivitis Transmission |
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| face to face contact, airborne droplets, towels |
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| Pink Eye characteristics |
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| very contagious |
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| Endogenous Bacterial Diseases |
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| normal flora mos become pathogenic in individuals with depressed immune systems |
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| Gangrene Agent |
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| Bacteroides fragilis (g-) rod |
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| Gangrene Invasion |
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| Normally in large intestine Injury goes to blood vessels |
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| Gangrene Characteristics |
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| Produces clots-necrosis |
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| UTI-Agent (primary) |
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| E.coli |
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| UTI Agents (secondary) |
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| Proteus, chlamydia |
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| UTI Invasion |
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| in urinary tract become pathogenic belong in intestine |
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| UTI Characteristics |
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| Cystitis (bladder), urethritis (ureters), pyelonephritis (nephrons) burn pain during urination |
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| UTI treat |
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| Sepro |
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| Dental Carries-Agents |
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| Strep mutans Strep mitis Strep salivaris |
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| Dental Carries-Invasion |
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| Biofilm (Plaque) formed on teeth Bacteria produce acids that break enamel |
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| Dental Carries- Prevention |
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| Fluorides, decrease sugar in food (ferm produces acid) |
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| Stages of Biofilm Development |
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| Attach Initial Colonization Secondary Colonization Mature Biofilm |
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| Nosocomial Infections |
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| acquired during hospitalization (caused by opportunistic organisms) |
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| Nosocomial Infecttions Passed by |
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| Hospital Staff |
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| 3 Predisposing Factors for Nosocomial |
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| -wide variety mos present -weak immune patients -direct or indirect chain of transmission |
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| 20% Nosocomial |
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| carried by hospital staff |
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| 80% Nosocomial |
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| opportunistic UTI/Wound infections |
