Worsham Micro Q3 Pathogenic Organisms
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| Staphylococcus aureus - Physical characteristics? Where are they found? Portals of Entry/Exit? | Spherical; grape-like clusters. Found in normal flora of mucous membrane of respiratory system. BROKEN SKIN = most common portal of entry/exit, but also GI & respiratory tracts.
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| Staphylococcus aureus - Virulence Factors | Toxins & enzymes. Resists phagocytosis (but does NOT have a capsule)
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| Staphylococcus aureus - Diseases (at least 5 examples) | Food poisoning, Nosocomial infections (pneumonia), Toxic shock syndrome, Scalded skin syndrome (<2 yrs old), Impetigo & many diseases ending in -emia or -itis (septicemia/bacteremia).
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| Staphylococcus aureus - Modes of Transmission | DIRECT CONTACT = MOST COMMON. INDIRECT contact also possible.
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| Streptococcus pyogenes - Physical characteristics? Alternate name? Portals of entry/exit? | Spherical;chain-like arrangement. Alt. name = Group A Beta-hemolytic Streptococcus (GAS or GABS). RESPIRATORY TRACT & BROKEN SKIN are portals of entry/exit.
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| Streptococcus pyogenes - Virulence Factors | Toxins & enzymes. Resists phagocytosis.
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| Streptococcus pyogenes - Diseases (at least 7 examples) | STREP THROAT/SEPTIC SORE THROAT/PHARYNGITIS = MOST COMMON. Also, Scarlet fever (strep throat+skin rash), Rheumatic fever (inflammation of heart valve), Puerperal sepsis (childbirth fever), Toxic Shock Syndrome, Impetigo, Erysipelas (St. Anthony's Fire)
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| Streptococcus pyogenes - Modes of Transmission | DIRECT DROPLET TRANSMISSION = MOST COMMON. INDIRECT contact also possible.
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| Streptococcus pneumoniae - Pysical characteristics? Alternate name? Portals of entry/exit? | Spherical; chain-like arrangement. Alt. name = PNEUMOCOCCUS. RESPIRATORY TRACT = portal of entry/exit
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| Streptococcus pneumoniae - Virulence Factors | Capsule
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| Streptococcus pneumoniae - Diseases (at least 3 examples) | Lobar pneumonia (infection of lung tissue isolated to one lobe), Otitis media (middle ear infection. Eustation tube can build infection), Meningitis (pneumococcal meningitis)
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| Streptococcus pneumoniae - Modes of Transmission | DIRECT DROPLET TRANSMISSION= MOST COMMON. INDIRECT contact also possible.
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| Neisseria gonorrhoeae - Physical characteristics? Alt. name? Portals of entry/exit? | Spherical. Alt. name = GONOCOCCUS. GENITOURINARY TRACT; EYES = portal of entry/exit.
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| Neisseria gonorrhoeae - Virulence Factors | Pili/Fimbriae
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| Neisseria gonorrhoeae - Diseases (at least 2 examples) | Gonorrhea (urethritis) = inflammation of urethra--can lead to PID (Pelvic Inflammatory Disease), Ophthalmia neonatorum (infant eye infection passed thru birth canal. Prophylactic treatment includes silver nitrate or antibiotics/microbial solution)
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| Neisseria gonorrhoeae - Modes of Transmission | DIRECT CONTACT (STD/BIRTH CANAL) = MOST COMMON. INDIRECT contact also possible.
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