Johns Hopkins ABX Guide
Streptococcus pyogenes (Group A)
Streptococcus pyogenes (Group A) is a topic covered in the Johns Hopkins ABX Guide.
To view the entire topic, please log in or purchase a subscription.
Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:
-- The first section of this topic is shown below --
MICROBIOLOGY
- Group A Streptococcus (GAS), beta-hemolytic--grows on blood agar. See Streptococcal species or S. pneumoniae modules for other streptococci.
- Streptococcus pyogenes, Lancefield group A.
- Gram-positive cocci in chains [Fig 1].
- Ecologic niches are pharynx, genital mucosa and skin; colonization rates:
- Adults 2-3%
- School children 15-20%
- Virulence depends on proteins that represent toxins, mimic host macromolecules and after immune responses.
- M protein gene (emm) ~100 serotypes
- May be used to track outbreaks, public health tracking of invasive infections
- Certain types (emm1, emm3, emm4, emm6, emm12, emm18, emm89) associated with most cases of invasive infections.
- M protein gene (emm) ~100 serotypes
-- To view the remaining sections of this topic, please log in or purchase a subscription --
MICROBIOLOGY
- Group A Streptococcus (GAS), beta-hemolytic--grows on blood agar. See Streptococcal species or S. pneumoniae modules for other streptococci.
- Streptococcus pyogenes, Lancefield group A.
- Gram-positive cocci in chains [Fig 1].
- Ecologic niches are pharynx, genital mucosa and skin; colonization rates:
- Adults 2-3%
- School children 15-20%
- Virulence depends on proteins that represent toxins, mimic host macromolecules and after immune responses.
- M protein gene (emm) ~100 serotypes
- May be used to track outbreaks, public health tracking of invasive infections
- Certain types (emm1, emm3, emm4, emm6, emm12, emm18, emm89) associated with most cases of invasive infections.
- M protein gene (emm) ~100 serotypes
There's more to see -- the rest of this entry is available only to subscribers.
Last updated: August 9, 2019
Citation
Auwaerter, Paul G, and John G Bartlett. "Streptococcus Pyogenes (Group A)." Johns Hopkins ABX Guide, The Johns Hopkins University, 2019. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540524/6/Streptococcus_pyogenes__Group_A_.
Auwaerter PG, Bartlett JG. Streptococcus pyogenes (Group A). Johns Hopkins ABX Guide. The Johns Hopkins University; 2019. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540524/6/Streptococcus_pyogenes__Group_A_. Accessed December 7, 2021.
Auwaerter, P. G., & Bartlett, J. G. (2019). Streptococcus pyogenes (Group A). In Johns Hopkins ABX Guide. The Johns Hopkins University. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540524/6/Streptococcus_pyogenes__Group_A_
Auwaerter PG, Bartlett JG. Streptococcus Pyogenes (Group A) [Internet]. In: Johns Hopkins ABX Guide. The Johns Hopkins University; 2019. [cited 2021 December 07]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540524/6/Streptococcus_pyogenes__Group_A_.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Streptococcus pyogenes (Group A)
ID - 540524
A1 - Auwaerter,Paul,M.D.
AU - Bartlett,John,M.D.
Y1 - 2019/08/09/
BT - Johns Hopkins ABX Guide
UR - https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_ABX_Guide/540524/6/Streptococcus_pyogenes__Group_A_
PB - The Johns Hopkins University
DB - Johns Hopkins Guide
DP - Unbound Medicine
ER -
