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Gram-Positive Vs. Gram-Negative Bacteria
 

 
Gram Positive Bacteria Overview 

 
COCCI
Staphylococcus
Bacteria Disease Treatment
Staphylococcus aureus 

  • Gastroenteritis
  • Endocarditis
  • Abscesses and mastitis
  • TSS
  • Impetigo
  • Scalded skin syndrome
  • Pneumonia
  • Surgical infections
  • Osteomyelitis
  • Nafcilin
  • Vancomycin (MRSA) 
Staphylococcus epidermidis 
  • Normal skin flora
  • Catheters/prosthetic devices
  • Biofilms
  • Blood culure contamination
  • Vancomycin
Staphylococcus saprophyticus 
  • UTI
-
Streptococcus
Streptococcus pneumoniae 
  • "MOPS"
  •  Meningitis
  •  Otitis media
  •  Pneumonia
  •  Sinusitis
  • Macrolides 
  • Ceftriaxone 
  • Amoxicillin
Streptococcus pyogenes (Group A) 
  • Pharyngitis
  • Cellulitis
  • Impetigo
  • Scarlet fever
  • TSS
  • Rheumatic fever
  • AGN
  • Beta lactams
Streptococcus agalacticae (Group B) 
  • Normal vaginal flora
  • Neonatal septicemia
  • Meningitis (neonatal)
  • Ampicillin
Streptococcus viridans 
  • Normal throat flora
  • Dental caries
  • Endocarditis
  • Penicillin G 
Streptococcus bovis (Group D) 
  • Bacteremia
  • Endocarditis
-
Enterococci
Enterococci faecalis (Group D) 
  • Endocarditis (subacute)
  • UTI
  • Biliary tract infections
  • Vancomycin
  • Linezolid and streptogramins (VRE)
BACILLI
Spore-Forming
Bacillus anthracis 
  • Anthrax
  • Ciprofloxacin
Bacillus cereus 
  • Food poisoning (rice)
  • Self-limiting
Clostridium tetani 
  • Tetanus
  • Hyperimmune human globulin
Clostridium botulinum 
  • Botulism
  • Antitoxin or hyperimmune human globulin
Clostridium perfringens 
  • Gas gangrene
  • Food poisoning
  • Clindamycin 
  • Self-limiting
Clostridium difficile 
  • Antibiotic associated diarrhea
  • Colitis
  • Pseudomembranous colitis
  • Metronidazole 
  • Vancomycin
Non-Spore Forming
Corynebacterium diphtheriae 
  • Diphtheria
  • Erythromycin
Listeria monocytogenes 
  • Meningitis
  • Amnionitis
  • Spontaneous abortion
  • Granulomatosis infantiseptica
  • Gastroenteritis
  • Ampicillin
 

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