Flashcards in Streptococci Deck (6):
Streptococcus Classification is based on _____.
List the classifications.
1. Alpha- partial hemolysis, green
2. Beta- complete hemolysis, clear
3. Gamma- no zone of clearing
Species level Classification (biochemical reactions/enzymes, DNA sequence)
Diseases caused by Group A Strep (GAS) and treatments:
1. Pharyngitis (strep)- penicillin
2. Acute Rheumatic Fever- penicillin
3. Necrotizing Fasciitis- surgical removal, antibiotics
4. Toxic Shock
5. Skin/Soft Tissue infection- topical antibiotics
6. Scarlet Fever
Difference between suppurative and non-suppurative diseases caused by GAS.
Suppurative (Pus) Diseases- caused by direct damage to organism
Non-Suppurative Diseases- late manifestations, autoimmune diseases
Most common diseases caused by Group B strep (GBS)
1. Neonatal Sepsis
Disease caused by Enterococci:
Challenges of treating this?
Nosocomial Opportunistic Infections
Worlds Toughest Pathogenic Bacteria
1. Grow in high salt concentrations and detergents (bile)
2. Inhibited, not killed by penicillin
3. Resistance to most antibiotics
4. Antibiotic synergism required to kill (penicillin and aminoglycoside)