Distribution of emm types in invasive and non-invasive group A and G streptococci

Our study describes the emm type distributions of invasive and non-invasive group A streptococci (GAS) and group G streptococci (GGS) strains in one of the biggest Health Districts in Finland. A total of 571 GAS or GGS were recovered from patients with invasive or non-invasive infections during a 1-...

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Bibliographic Details
Published in:European journal of clinical microbiology & infectious diseases 2012-06, Vol.31 (6), p.1251-1256
Main Authors: Vähäkuopus, S., Vuento, R., Siljander, T., Syrjänen, J., Vuopio, J.
Format: Article
Language:English
Subjects:
Abscesses
Antigens, Bacterial - genetics
Bacterial Outer Membrane Proteins - genetics
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Blood
Carrier Proteins - genetics
Cerebrospinal fluid
Disease control
Finland - epidemiology
Genotype
Health surveillance
Humans
Infection
Infections
Infectious diseases
Internal Medicine
Medical laboratories
Medical Microbiology
Medical sciences
Medicine
Molecular Epidemiology
Molecular Typing
Pharynx
Proteins
Statistical analysis
Streptococcal Infections - epidemiology
Streptococcal Infections - microbiology
Streptococcus pyogenes - classification
Streptococcus pyogenes - isolation & purification
Virulence
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Summary:Our study describes the emm type distributions of invasive and non-invasive group A streptococci (GAS) and group G streptococci (GGS) strains in one of the biggest Health Districts in Finland. A total of 571 GAS or GGS were recovered from patients with invasive or non-invasive infections during a 1-year period in 2008–2009 in Pirkanmaa Health District in Finland. We describe here the emm type distributions of GAS and GGS collected from throat ( n  = 246), pus ( n  = 217), deep tissue ( n  = 56) and blood ( n  = 52). The most common emm types among GAS were emm 77, emm 1, emm 28, emm 89 and emm 12. Among GGS, the most common emm types were stG480, stG643, stG6, stC6979 and stG485. Some emm types were found to associate with certain infection focus. In GAS, emm 77 associated with pus isolates, whereas emm 1 and emm 12 were more frequent among throat isolates. In GGS, stG480 was more commonly found from throat isolates.
ISSN:0934-9723
1435-4373
DOI:10.1007/s10096-011-1436-2