Flashcards in this deck (27)

• The medically pertinent anatomy of Streptococci includes their membrane, cell wall, and gram-stain.
  microbiology bacteria streptococci
• Streptococcus pyogenes belongs to Lancefield group A and is associated with diseases like pharyngitis and necrotizing fasciitis.
  microbiology bacteria streptococcus_pyogenes
• The characteristic morphologies of Streptococci include chains, pairs, and lancet shapes.
  microbiology bacteria morphology
• Streptococcus pneumoniae is a leading cause of pneumonia and meningitis.
  microbiology bacteria streptococcus_pneumoniae
• Virulence factors of S. pyogenes include M proteins that resist phagocytosis.
  microbiology bacteria virulence
• Group A Streptococcus (S. pyogenes) is the #1 cause of bacterial pharyngitis.
  microbiology bacteria diseases
• Streptococcus agalactiae belongs to Lancefield group B and can cause pneumonia and sepsis in neonates.
  microbiology bacteria streptococcus_agalactiae
• The Streptococcus species can be organized by antibiotic resistance, from least to most resistant, including Penicillin and Vancomycin.
  microbiology bacteria antibiotic_resistance
• Streptococcus pyogenes can lead to rheumatic fever and post-streptococcal glomerulonephritis.
  microbiology bacteria diseases
• The characteristic shape of Streptococcus pneumoniae is lancet-shaped.
  microbiology bacteria morphology
• Group B streptococcus, S. agalactiae, is a leading cause of neonatal septicemia, meningitis, and pneumonia.
  bacteria streptococcus neonatal
• Group D streptococcus includes S. bovis and S. equinus and is associated with urinary tract infections and endocarditis.
  bacteria streptococcus infections
• S. pneumoniae is the #1 cause of bacterial pneumonia in adults and is known for its virulence via capsule.
  bacteria streptococcus pneumonia
• S. viridans species can cause dental caries and subacute endocarditis post dental manipulation.
  bacteria streptococcus dental
• Diagnosis of S. pneumoniae involves culture and sensitivity to optochin.
  bacteria diagnosis streptococcus
• Enterococci are Gram positive diplococci, catalase negative, and cause urinary tract infections and bacteremia.
  bacteria enterococci infections
• Enterococcus species E. faecalis and E. faecium are part of normal intestinal flora and are intrinsically resistant to β-lactam antibiotics.
  bacteria enterococci resistance
• Gram-positive bacteria have a thick cell wall made of peptidoglycan.
  bacteria gram-positive cell-wall
• Hemolysis can be classified as complete (Beta), partial (Alpha), or none (Gamma).
  bacteria hemolysis classification
• The main diseases caused by Streptococcus pneumoniae include pneumonia, otitis media, and meningitis.
  bacteria streptococcus diseases
• Streptococcus pneumoniae is known as Pneumococcus and is characterized by its lancet shape.
  bacteria streptococcus shape
• Streptococcus pneumoniae can lead to lobar pneumonia, characterized by cough, rusty sputum, and fever.
  bacteria streptococcus pneumonia
• Streptococcus pneumoniae is carried in the nasopharynx of 5-50% of individuals.
  bacteria epidemiology nasopharynx
• Streptococcus pneumoniae is carried in the nasopharynx of 5-50% of the population.
  bacteria epidemiology
• In children, Strep pneumoniae commonly causes otitis media, pneumonia, and meningitis.
  bacteria children diseases
• In adults, Strep pneumoniae commonly causes pneumonia and meningitis.
  bacteria adults diseases
• The percentage of adults carrying Strep pneumoniae in their nasopharynx ranges from 5% to 50%.
  bacteria epidemiology