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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).


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Methylene Blue Solution use in staining variety of bacteria?

... Corynebacterium Diphtheria: Blue Granules Escherichia Coli: Blue Rods Streptococcus Pyogenes: Blue Cocci For more Details call us : 435-755-9848 OR please visit online : http://www.scytek.com/products/26-MBS125-Methylene-Blue-Solution.asp ...

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by scytek
Sun Feb 22, 2015 9:22 am
 
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 268

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 ...

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by microbiologyhelp
Thu Dec 12, 2013 6:12 pm
 
Forum: Microbiology
Topic: ID OF UNKNOWN?!?!
Replies: 6
Views: 6156

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 ...

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by triton
Wed Aug 22, 2012 11:53 am
 
Forum: Microbiology
Topic: Black coloration of sheep blood agar
Replies: 3
Views: 7946

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 ...

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by biohazard
Wed Aug 22, 2012 11:27 am
 
Forum: Microbiology
Topic: Black coloration of sheep blood agar
Replies: 3
Views: 7946

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 ...

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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: 6833
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