J Clin Microbiol 2006,44(1):124–131.PubMedCrossRef 27. Pimenta FC, Gertz RE Jr, Roundtree A, Yu J, Nahm MH, McDonald RR, Carvalho GSK872 Mda G, Beall BW: Rarely occurring 19A-like cps locus from a serotype 19F pneumococcal isolate indicates continued need of serology-based quality control for PCR-based serotype determinations. J Clin Microbiol 2009,47(7):2353–2354.PubMedCrossRef

28. Jin P, Xiao M, Kong F, Oftadeh S, Zhou F, Liu C, Gilbert GL: Simple, accurate, serotype-specific PCR assay to differentiate Streptococcus pneumoniae serotypes 6A, 6B, and 6C. J Clin Microbiol 2009,47(8):2470–2474.PubMedCrossRef 29. Brenciani A, Bacciaglia A, Vecchi M, Vitali LA, Varaldo PE, Giovanetti E: Genetic elements carrying erm(B) in Streptococcus pyogenes and association with tet(M) tetracycline resistance gene. Antimicrob Agents Chemother 2007,51(4):1209–1216.PubMedCrossRef 30. Del Grosso M, Scotto d’Abusco A, Iannelli F, Pozzi G, find more Pantosti A: Tn2009, a Tn916-like element containing mef(E) in Streptococcus pneumoniae. Antimicrob Agents Chemother 2004,48(6):2037–2042.PubMedCrossRef 31. Pantosti A, D’Ambrosio F, Bordi E, Scotto D’Abusco A, Del Grosso M: Activity of quinupristin-dalfopristin in invasive isolates of Streptococcus pneumoniae from Italy. buy Mdivi1 Clin Microbiol Infect 2001,7(9):503–506.PubMedCrossRef 32. Del Grosso M, Camilli

R, Iannelli F, Pozzi G, Pantosti A: The mef(E)-carrying genetic element (mega) of Streptococcus pneumoniae: insertion sites and association with other genetic elements. Antimicrob Agents Chemother 2006,50(10):3361–3366.PubMedCrossRef

33. Cochetti I, Tili E, Mingoia M, Varaldo PE, Montanari MP: erm(B)-carrying elements in tetracycline-resistant pneumococci and correspondence between Tn1545 and Tn6003. Thalidomide Antimicrob Agents Chemother 2008,52(4):1285–1290.PubMedCrossRef 34. Cochetti I, Tili E, Vecchi M, Manzin A, Mingoia M, Varaldo PE, Montanari MP: New Tn916-related elements causing erm(B)-mediated erythromycin resistance in tetracycline-susceptible pneumococci. J Antimicrob Chemother 2007,60(1):127–131.PubMedCrossRef 35. Moore MR, Gertz RE Jr, Woodbury RL, Barkocy-Gallagher GA, Schaffner W, Lexau C, Gershman K, Reingold A, Farley M, Harrison LH, et al.: Population snapshot of emergent Streptococcus pneumoniae serotype 19A in the United States, 2005. J Infect Dis 2008,197(7):1016–1027.PubMedCrossRef 36. Pai R, Moore MR, Pilishvili T, Gertz RE, Whitney CG, Beall B: Postvaccine genetic structure of Streptococcus pneumoniae serotype 19A from children in the United States. J Infect Dis 2005,192(11):1988–1995.PubMedCrossRef 37. McGee L, McDougal L, Zhou J, Spratt BG, Tenover FC, George R, Hakenbeck R, Hryniewicz W, Lefevre JC, Tomasz A, et al.: Nomenclature of major antimicrobial-resistant clones of Streptococcus pneumoniae defined by the pneumococcal molecular epidemiology network. J Clin Microbiol 2001,39(7):2565–2571.