RT Book, Section
A1 Wessels, Michael R.
A2 Kasper, Dennis L.
A2 Fauci, Anthony S.
SR Print(0)
ID 1141407548
T1 STREPTOCOCCAL INFECTIONS
T2 Harrison's Infectious Diseases, 3e
YR 2017
FD 2017
PB McGraw-Hill Education
PP New York, NY
SN 9781259835971
LK accessbiomedicalscience.mhmedical.com/content.aspx?aid=1141407548
RD 2024/04/18
AB Many  varieties  of  streptococci  are  found  as  part  of  the  normal  flora  colonizing  the  human  respiratory,  gastrointestinal,  and  genitourinary  tracts.  Several  species  are  important  causes  of  human  disease.  Group  A  Streptococcus  (GAS,  Streptococcus  pyogenes)  is  responsible  for  streptococcal  pharyngitis,  one  of  the  most  common  bacterial  infections  of  school-age  children,  and  for  the  postinfectious  syndromes  of  acute  rheumatic  fever  (ARF)  and  poststreptococcal  glomerulonephritis  (PSGN).  Group  B  Streptococcus  (GBS,  Streptococcus  agalactiae)  is  the  leading  cause  of  bacterial  sepsis  and  meningitis  in  newborns  and  a  major  cause  of  endometritis  and  fever  in  parturient  women.  Viridans  streptococci  are  the  most  common  cause  of  bacterial  endocarditis.  Enterococci,  which  are  morphologically  similar  to  streptococci,  are  now  considered  a  separate  genus  on  the  basis  of  DNA  homology  studies.  Thus,  the  species  previously  designated  as  Streptococcus  faecalis  and  Streptococcus  faecium  have  been  renamed  Enterococcus  faecalis  and  Enterococcus  faecium,  respectively.  The  enterococci  are  discussed  in  Chap.  45.