Dictionary » S » Streptococcus pyogenes

Streptococcus pyogenes

streptococcus pyogenes

A species of gram-positive, coccoid bacteria isolated from skin lesions, blood, inflammatory exudates, and the upper respiratory tract of humans. It is a group a haemolytic streptococcus that can cause scarlet fever and rheumatic fever. Unlike the docile strains that cause strep throat, however, the virulent strains penetrate deep into the body, with catastrophic results. It has been demonstrated that invasive streptococcus a infections can trigger a toxic shock syndrome, chew up muscle (myositis), or destroy the sheath that covers the muscle (fasciitis, necrotizing).


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: Re:

I already gave you the answer in the other thread. It's beta-hemolytic streptococcus (provided that your previous post correctly identified hemolysis). ... list which are the most narrowest? Key to organisms 1=Streptococcus pyogenes 13=Streptococcus oralis (Strep. mitior) 2=Streptococcus agalactiae ...

See entire post
by microbiologyhelp
Thu Dec 12, 2013 6:12 pm
 
Forum: Microbiology
Topic: ID OF UNKNOWN?!?!
Replies: 5
Views: 3356

Re:

... from red blood cells. Thus, on standard blood agar these bacteria (e.g. Streptococcus pyogenes ) virtually always cause hemolysis, since it does not contain free iron. Some other ...

See entire post
by triton
Wed Aug 22, 2012 11:53 am
 
Forum: Microbiology
Topic: Black coloration of sheep blood agar
Replies: 3
Views: 6318

Black coloration of sheep blood agar

... from red blood cells. Thus, on standard blood agar these bacteria (e.g. Streptococcus pyogenes ) virtually always cause hemolysis, since it does not contain free iron. Some other ...

See entire post
by biohazard
Wed Aug 22, 2012 11:27 am
 
Forum: Microbiology
Topic: Black coloration of sheep blood agar
Replies: 3
Views: 6318

Re:

... into seven genetically distinct groups: pyogenic streptococci (S. pyogenes, S.agalactiae, S. dysgalactiae) - group I; Str. bovis group (II); ... group except for S. pneumoniae, which is not considered a viridans Streptococcus despite the genetical affinity. ok this is what i was looking ...

See entire post
by SweetSarah
Tue Mar 06, 2012 4:37 am
 
Forum: Microbiology
Topic: Is Strep mitis a member of the Strep Viridans species
Replies: 7
Views: 5297

Is Strep mitis a member of the Strep Viridans species

... into seven genetically distinct groups: pyogenic streptococci (S. pyogenes, S.agalactiae, S. dysgalactiae) - group I; Str. bovis group (II); ... group except for S. pneumoniae, which is not considered a viridans Streptococcus despite the genetical affinity.

See entire post
by xenopus
Mon Mar 05, 2012 5:32 pm
 
Forum: Microbiology
Topic: Is Strep mitis a member of the Strep Viridans species
Replies: 7
Views: 5297
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 3,833 times. 
What links here | Related changes | Permanent link