|
Lancefield Group |
Example |
Hemolytic |
Infections |
A |
S. pyogenes |
ß |
pharyngitis, scarlet fever, impetigo, cellulitis |
B |
S. agalactiae |
ß |
Neonatal sepsis and meningitis, puerperal infection, urinatry tract infection (UTI), diabetic ulcer infection, endocarditis |
C |
S. equi |
ß |
Cellulitis, bacteremia, endocarditis |
D |
Enterococci: E. faecalis, E. faecium |
usually non-hemolytic |
UTI, wound infections, endocarditis |
D |
Nonenterococcal: s. bovis |
usually non-hemolytic |
Bacteremia, endocarditis |
G |
S. canis |
ß |
Cellulitis, bacteremia, endocarditis |
Variable/Non-groupable |
Viridans streptococci: S. mutans, S. sanguis |
alpha |
endocarditis, dental abscess, brain abscess |
Variable/Non-groupable |
Intermedius or milleri group: S. intermedius |
variable |
Brain abscess, visceral abscess |
Variable/Non-groupable |
Anaerobic streptococci: Peptostreptococcus magnus |
usually non-hemolytic |
Sinusitis, pneumonia, empyema, brain abscess, liver abscess |
Table from: Wessels, M.R., Streptococcal and Enterococcal Infections, In Harrison's Principles of Internal Medicine 14th edition, (Isselbacher, K.J., Braunwald, E., Wilson, J.D., Martin, J.B., Fauci, A.S. and Kasper, D.L., eds) McGraw-Hill, Inc (Health Professions Division), 1998, p. 885. |
Group A streptococci:
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Group A streptococci:
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Group A streptococci:
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Group A streptococci:
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Group A streptococci:
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