Overview of bugs

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Bug Name
Labs
Toxins
Diseases
Treatment
Transmission
Other
Neisseria meningitidis  Gram - Coccus, Aerobic, Catalase +, Oxidase +, Intracellular Diplococci  Capsule, Pili, LOS  Acute purulent meningitis, Meningococcemia, Waterhouse-Friderichsen Syndrome  Ceftriaxone, Cefotaxime  Colonizes the nasopharynx; Horizontal transmission via respiratory droplets  Symptoms: Petechial lesions on trunk Waterhouse-Friderichsen Syndrome notes:Initially caused by an N. meningitidis infection, progressing to bilateral adrenal hemorrhage, DIC, and coma; rapidly fatal  
Neisseria gonorrhea  Gram - Coccus, Aerobic, Catalase +, Oxidase +, Intracellular, Diplococci  Endotoxin, Pili, OPa proteins, IgA protease, Beta-Lactamase  Gonorrhea, PID, Disseminated gonococcal infection and septic arthritis, ophthalmia neonatorum  Ceftriaxone, Cefoxitin and doxycycline, spectinomycin  STD  (blank)  
Staph aureus  Gram Positive Cocci, Facultative Anaerobes, Catalase +, Coagulase +, Beta-hemolytic  Alpha toxin (septic shock), Beta toxin (sphingomyelinase), Capsule, Protein A, Penicillinase, Hemolysin, Enterotoxin, TSST-1  Impetigo, Pyoderma, Bateremia/sepsis, Post-viral pneumonia, Osteomyelitis, Infective arthritis, Acute endocarditis, Food poisoning, Scalded Skin Syndrome, TSS  Nafcillin, Vanc, 1st Generation cephalosporin, Bactracin  Nose/Sneeze, Contact, Nosocomial  (blank)  
Staph epidermidis  Gram Positive Cocci, Facultative Anaerobes, Catalase +, Coagulase -  Glycocalyx  Neonatal bateremia and sepsis, Subacuate endocarditis, Prosthetic valve infection  Vanc, linezolid, daptomycin  Normal flora  (blank)  
Staph saprophyticus  Gram Positive Cocci, Facultative Anaerobes, Catalase +, Coagulase-  Hemaglutinin protein and surface proteins--> attachement to urinary tract epithelial cells  UTI  Trimethoprim-Sulfamethoxazole  Normal flora of genitourinary tract  (blank)  
Strep pyogenes  Gram Positive Cocci, Microaerophilic, Catalase -, Beta-Hemolytic, Bacitracin Sensitive  Hyaluronic acid capsule, M Protein, Streptolysins O and S, Pyrogenic Exotoxin, Exoenzymes  Pharyngitis, Impetigo, Erysipela, Cellulitis, Puerperal Infection, Necrotizing fasciitis, Scarlet fever, TSLS, Acute rheumatic fever, Post-streptococcal acute glomerulonephritis  Penicillin, Erythromycin, Sulfonamides  Normal flora of skin and oropharynx, causing infection with penetration of tissues  (blank)  
Strep pneumoniae  Gram Positive Cocci, Microaerophilic, Lancet-shaped diplococci, Alpha-hemolytic, Optochin sensitive  Capsule, Pneumolysin  Pneumococcal lobar pneumonia, Meningitis (adult), Otitis media, Sinusitis, Chronic bronchitis, Conjunctivitis  Penicillin, Augmentin, Ceftriaxone, Vanc  Normal flora of the upper respiratory tract; Meningitis with spread from sinusitis or otitis media  Prevnar (Infants) and Pnuemovax (adults)  
Strep agalactiae  Gram Positive Cocci, Microaerophilic, Paired cocci, Catalase -, Beta-hemolytic, Bacitracin resistant  Capsule, Sialic acid  Neonatal pneumonia and Meningitis  Penicillin G +/- Gent, Vanc, Ampicillin + Gent  Normal flora of vagina; Vertical transmission at birth  (blank)  
Strep viridans  Gram Positive Cocci, Microaerophilic, Catalase -, Alpha-hemolytic, Optochin resistant  Glycocalyx, Lipoteichoic acid, Glucans  Dental Caries, Subacute endocarditis  Penicillin + Gent, Vanc  Carried in mouth  (blank)  
Clostridium perfringens  Gram + Rods, Anaerobic, Catalase -  Enterotoxins, Alpha toxin  Food poisoning, Gas gangrene, Endometritis, Cellulitis  Penicillin G, Metronidazole, Hyperbaric oxygen  Spores in soil, dust, and air, entering wound sites  (blank)  
Clostridium tetani  Gram + Rods, Anaerobic, Catalase -  Spore-forming; toxin blocks inhibition--> lock jaw, opisthotonic posturing  Lockjaw/opisthotonic  Metronidazole, Tetanus anti-toxin, Respiratory support, Control of rigidity and spasms with benzodiazepines  Spores occur in soil and disease occurs by entry of spores into wound sites; umbilical stump infection in neonates  vaccine: DPT  
Clostridium difficile  Gram + Rods, Anaerobic, Catalase -  Flagella, spores with enterotoxins  Pseudomembranous colitis, Bloody diarrhea  IV Metronidazole, Oral Vancomycin, Water and electrolytes  Spores infecting wound sites  (blank)  
Clostridium botulinum  Gram + Rods, Anaerobic, Catalase -  Blocks acetylcholine release  Diffuse paralysis  Botulinum anti-toxin, Metronidazole, Vanc  Airborne spores  (blank)  
E. coli  Gram - Rods, Facultative Anaerobes, Lactose fermenting  Type I fimbriae  Hemolytic uremic syndrome, Cystitis, Pyelonephritis, UTI with indwelling catheter, Neonatal Meningitis  (blank)  (blank)  (blank)  
ETEC  Gram - Rods, Facultative Anaerobes  CFA pili, LT Toxin (cholera-like), ST Toxin; Non-Invasive  Watery, secretory diarrhea known as Traveler's Diarrhea  Fluid and electrolyte replacement  (blank)  Sources: Salads, fruits, vegetables  
EPEC  Gram - Rods, Facultative Anaerobes  No enterotoxins  Secretory and Mucoid Diarrhea  Fluid and electrolyte replacement  (blank)  (blank)  
EAgEC  Gram - Rods, Facultative Anaerobes  (blank)  Secretory Diarrhea  Fluid and electrolyte replacement  (blank)  (blank)  
EHEC  Gram - Rods, Facultative Anaerobes  Bfp Pilus, Shiga toxin  Hemolytic Uremic Syndrome, Hemorrhagic Colitis  (blank)  (blank)  Type: O157:H7 Sources: Beef, Apple juice, Radishes  
EIEC  Gram - Rods, Facultative Anaerobes  Shigella-like Toxin  Blood, pus, and mucous in diarrhea  (blank)  (blank)  (blank)  
UPEC  Gram - Rods, Facultative Anaerobes  (blank)  Cystitis, Neonatal Meningitis, UTI, Pyelonephritis  Ampicillin, Bactrim, Ampicillin + Gentamycin  (blank)  (blank)  


   

 
 

 
 

 
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