Streptococcus pyogenes emm types and subtypes of isolates from paediatric asymptomatic carriers and children with pharyngitis

被引:0
作者
Blandino, Giovanna [1 ]
Puglisi, Salvatore [1 ]
Speciale, Annamaria [1 ]
Musumeci, Rosario [2 ]
机构
[1] Univ Catania, Dept Microbiol & Gynecol Sci, Microbiol Sect, I-95124 Catania, Italy
[2] Univ Milano Bicocca, Dept Clin Med & Prevent, Monza, Italy
关键词
Streptococcus pyogenes; emm subtypes; Pharyngitis; Asymptomatic carrier; GROUP-A STREPTOCOCCI; INTERNALIZATION-ASSOCIATED PROTEINS; INFECTIONS; RESISTANCE; GENES;
D O I
暂无
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
This study determined emm subtypes of Streptococcus pyogenes strains isolated from asymptomatic carriers and children with pharyngitis. All strains were previously investigated for fibronectin-binding genes (prtF1 and prtF2) and antimicrobial susceptibility. The most significant differences between the two groups, which share only 5 of the 14 detected emm subtypes, concern the presence of the two more common mum subtypes, 12.0(50.0% vs. 3.1%, for asymptomatic carriers and children with pharyngitis, respectively) and 1.0 (28.1% vs. 0%, for children with pharyngitis and asymptomatic carriers, respectively).
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页码:101 / 104
页数:4
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共 16 条
  • [1] Detection of genes encoding internalization-associated proteins in Streptococcus pyogenes isolates from patients with invasive diseases and asymptomatic carriers
    Baldassarri, Lucilla
    Creti, Roberta
    Imperi, Monica
    Recchia, Simona
    Pataracchia, Marco
    Orefici, Graziella
    [J]. JOURNAL OF CLINICAL MICROBIOLOGY, 2007, 45 (04) : 1284 - 1287
  • [2] Streptococcal emm types associated with T-agglutination types and the use of conserved emm gene restriction fragment patterns for subtyping group A streptococci
    Beall, B
    Facklam, RR
    Elliott, JA
    Franklin, AR
    Hoenes, T
    Jackson, D
    Laclaire, L
    Thompson, T
    Viswanathan, R
    [J]. JOURNAL OF MEDICAL MICROBIOLOGY, 1998, 47 (10) : 893 - 898
  • [3] Sequencing emm-specific PCR products for routine and accurate typing of group a streptococci
    Beall, B
    Facklam, R
    Thompson, T
    [J]. JOURNAL OF CLINICAL MICROBIOLOGY, 1996, 34 (04) : 953 - 958
  • [4] emm and sof gene sequence variation in relation to serological typing of opacity-factor-positive group A streptococci
    Beall, B
    Gherardi, G
    Lovgren, M
    Facklam, RR
    Forwick, BA
    Tyrrell, GJ
    [J]. MICROBIOLOGY-SGM, 2000, 146 : 1195 - 1209
  • [5] Association of group A streptococcal emm types with virulence traits and macrolide-resistance genes is independent of the source of isolation
    Creti, R
    Gherardi, G
    Imperi, M
    von Hunolstein, C
    Baldassarri, L
    Pataracchia, M
    Alfarone, G
    Cardona, F
    Dicuonzo, G
    Orefici, G
    [J]. JOURNAL OF MEDICAL MICROBIOLOGY, 2005, 54 (10) : 913 - 917
  • [6] emm types, virulence factors, and antibiotic resistance of invasive Streptococcus pyogenes isolates from Italy:: what has changed in 11 years?
    Creti, Roberta
    Imperi, Monica
    Baldassarri, Lucilla
    Pataracchia, Marco
    Recchia, Simona
    Alfarone, Giovanna
    Orefici, Graziella
    [J]. JOURNAL OF CLINICAL MICROBIOLOGY, 2007, 45 (07) : 2249 - 2256
  • [7] Pathogenesis of group A streptococcal infections
    Cunningham, MW
    [J]. CLINICAL MICROBIOLOGY REVIEWS, 2000, 13 (03) : 470 - +
  • [8] Molecular and clinical characteristics of invasive group A streptococcal infection in Sweden
    Darenberg, Jessica
    Luca-Harari, Bogdan
    Jasir, Aftab
    Sandgren, Andreas
    Pettersson, Helena
    Schalen, Claes
    Norgren, Mari
    Romanus, Victoria
    Norrby-Teglund, Anna
    Normark, Birgitta Henriques
    [J]. CLINICAL INFECTIOUS DISEASES, 2007, 45 (04) : 450 - 458
  • [9] The intracellular status of Streptococcus pyogenes:: role of extracellular matrix-binding proteins and their regulation
    Kreikemeyer, B
    Klenk, M
    Podbielski, A
    [J]. INTERNATIONAL JOURNAL OF MEDICAL MICROBIOLOGY, 2004, 294 (2-3) : 177 - 188
  • [10] Molecular characterisation and clonal analysis of group A streptococci causing pharyngitis among paediatric patients in Palermo, Italy
    Lorino, G
    Gherardi, G
    Angeletti, S
    De Cesaris, M
    Graziano, N
    Maringhini, S
    Merlino, F
    Di Bernardo, F
    Dicuonzo, G
    [J]. CLINICAL MICROBIOLOGY AND INFECTION, 2006, 12 (02) : 189 - 192